CVE-2026-41938

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.7% (53rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3
Elevated

Also known asEUVD-2026-27893 (ENISA EUVD)Source: ENISA EUVD

8.8EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

Vvveb before version 1.0.8.2 contains an unrestricted file upload vulnerability in the media upload handler that allows authenticated users with media-upload permissions to bypass extension restrictions by uploading a .htaccess file to map .phtml extensions to the PHP handler. Attackers can upload a .phtml file containing arbitrary PHP code and execute the uploaded payload through a subsequent unauthenticated HTTP GET request to the uploaded file, resulting in remote code execution with web server privileges.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG Risk 56/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.7%
EPSS %ILE
53rd
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

May 6, 2026

Last Modified

October 26, 2026

Advisory Details (4)

Auto-updated May 6, 2026
Fix referenced — no release confirmed yet. Sources: github.
Web page

Vvveb < 1.0.8.2 RCE via Media Upload Handler | Advisories | VulnCheck

https://www.vulncheck.com/advisories/vvveb-rce-via-media-upload-handler
GitHub advisoryMentions a patch (unverified)

Unauthenticated Reflected Cross-Site Scripting via Editor Preview Bypass · Advisory · givanz/Vvveb · GitHub

https://github.com/givanz/Vvveb/security/advisories/GHSA-wwmv-4g9g-p48g
Web page

Release Vvveb 1.0.8.2 · givanz/Vvveb · GitHub

https://github.com/givanz/Vvveb/releases/tag/1.0.8.2
Web page

Added admin and user key check for editor component rendering to fix … · givanz/Vvveb@54a9e84 · GitHub

https://github.com/givanz/Vvveb/commit/54a9e846fb94192f1b31ae81d81d25c874662e6a

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 201 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 101 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  3. 2026-10-27 20:59 UTCEG score recompute
  4. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  5. 2026-10-26 19:29 UTCEG score recompute
  6. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  7. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  8. 2026-10-25 14:29 UTCEG score recompute
  9. 2026-10-24 16:33 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  10. 2026-10-24 05:50 UTCEG score recompute
  11. 2026-10-23 16:31 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  12. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  15. 2026-10-19 16:32 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  17. 2026-10-18 03:41 UTCEG score recompute
  18. 2026-10-17 16:34 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  19. 2026-10-17 14:30 UTCEG score recompute
  20. 2026-10-16 16:42 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  22. 2026-10-14 16:33 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  25. 2026-10-12 16:08 UTCEG score recompute
Show 75 more
  1. 2026-10-11 19:49 UTCEG score recompute
  2. 2026-10-11 17:04 UTCEG score recompute
  3. 2026-10-11 14:30 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  5. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  6. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  7. 2026-10-08 17:12 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  8. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  9. 2026-10-06 15:17 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  10. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  11. 2026-10-04 23:22 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  12. 2026-10-03 14:25 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  13. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  14. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  15. 2026-09-30 09:11 UTCOSV refresh
  16. 2026-09-27 13:48 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  17. 2026-09-26 15:58 UTCEPSS rescoreEPSS 1.0% · 61st percentile
  18. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  19. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  20. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  22. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  23. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  25. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  26. 2026-09-11 15:40 UTCOSV refresh
  27. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  28. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  29. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  30. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  31. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  32. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  33. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  34. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  35. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  36. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  37. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  38. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  39. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  40. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  41. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  42. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  43. 2026-08-23 19:46 UTCEG score recompute
  44. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  45. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  46. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  47. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  48. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  49. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  50. 2026-08-17 12:52 UTCEG score recompute
  51. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  52. 2026-08-16 04:50 UTCEG score recompute
  53. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  54. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  55. 2026-08-14 03:24 UTCEG score recompute
  56. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  57. 2026-08-12 16:59 UTCEG score recompute
  58. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  59. 2026-08-11 15:59 UTCEG score recompute
  60. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  61. 2026-08-11 01:30 UTCEG score recompute
  62. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  63. 2026-08-10 00:36 UTCEG score recompute
  64. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  65. 2026-08-09 02:33 UTCEG score recompute
  66. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  67. 2026-08-07 21:56 UTCEG score recompute
  68. 2026-08-06 20:23 UTCEG score recompute
  69. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  70. 2026-08-05 22:19 UTCEG score recompute
  71. 2026-08-05 19:17 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  72. 2026-08-04 15:10 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  73. 2026-08-04 10:38 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  74. 2026-08-03 19:50 UTCEG score recompute
  75. 2026-08-03 10:36 UTCEPSS rescoreEPSS 0.5% · 42nd percentile

Frequently asked(5)

What is CVE-2026-41938?
CVE-2026-41938 is a high-severity vulnerability; its CVE record was published on May 6, 2026. Vvveb before version 1.0.8.2 contains an unrestricted file upload vulnerability in the media upload handler that allows authenticated users with media-upload permissions to bypass extension restrictions by uploading a .htaccess file to map .phtml extensions to the PHP handler. Attackers can upload…
When was CVE-2026-41938 made public?
CVE-2026-41938 was made public on May 4, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on May 6, 2026. EchelonGraph's copy of the record carries a last-modified date of October 26, 2026; the record at its source may have been updated since.
Is CVE-2026-41938 actively exploited?
CVE-2026-41938 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-41938?
CVE-2026-41938 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-41938?
A fix for CVE-2026-41938 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-41938

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