CVE-2026-77996

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (34th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

Joomla Extension - yootheme.com - Authenticated, privileged stored XSS in YOOtheme Pro 1.0.0-5.0.41 - Lack of escaping in the location custom field lead to a XSS vector.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.4% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (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: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation none (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

August 25, 2026

Last Modified

September 23, 2026

Advisory Details (1)

Auto-updated Aug 25, 2026
No fix on record yet.
Web page

YOOtheme Pro: The ultimate website builder for WordPress and Joomla

https://www.yootheme.com/

Vendor Advisories for CVE-2026-77996(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 20× in last 7d / 109× 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 194 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 94 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-10-13 06:52 UTCEG score recompute
  3. 2026-10-13 06:52 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  4. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  5. 2026-10-12 15:37 UTCEG score recompute
  6. 2026-10-11 19:23 UTCEG score recompute
  7. 2026-10-11 16:39 UTCEG score recompute
  8. 2026-10-11 13:57 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  10. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  11. 2026-10-10 12:14 UTCEG score recompute
  12. 2026-10-10 12:14 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  14. 2026-10-09 04:29 UTCEG score recompute
  15. 2026-10-09 04:29 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  16. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  17. 2026-10-08 03:21 UTCEG score recompute
  18. 2026-10-08 03:20 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  20. 2026-10-07 11:08 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  21. 2026-10-07 00:16 UTCEG score recompute
  22. 2026-10-07 00:16 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  23. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  24. 2026-10-06 13:25 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  25. 2026-10-06 02:34 UTCEG score recompute
Show 75 more
  1. 2026-10-06 02:34 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  2. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  3. 2026-10-05 12:23 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  4. 2026-10-05 01:31 UTCEG score recompute
  5. 2026-10-05 01:31 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  6. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  7. 2026-10-04 14:40 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  8. 2026-10-04 03:18 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  9. 2026-10-03 16:27 UTCEG score recompute
  10. 2026-10-03 16:27 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  11. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  12. 2026-10-03 05:02 UTCEG score recompute
  13. 2026-10-03 05:02 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  14. 2026-10-02 17:56 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  15. 2026-10-02 07:05 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  16. 2026-10-01 20:15 UTCEG score recompute
  17. 2026-10-01 20:14 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  18. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  19. 2026-10-01 07:07 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  20. 2026-09-30 20:15 UTCEG score recompute
  21. 2026-09-30 20:15 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  22. 2026-09-30 06:49 UTCEG score recompute
  23. 2026-09-30 06:49 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  24. 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  25. 2026-09-29 08:21 UTCEG score recompute
  26. 2026-09-29 08:21 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  27. 2026-09-28 21:30 UTCEG score recompute
  28. 2026-09-28 21:30 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  29. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  30. 2026-09-28 06:47 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  31. 2026-09-27 19:52 UTCEG score recompute
  32. 2026-09-27 19:52 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  33. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  34. 2026-09-27 08:58 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  35. 2026-09-26 22:07 UTCEG score recompute
  36. 2026-09-26 22:07 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  37. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  38. 2026-09-26 00:28 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  39. 2026-09-25 09:06 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  40. 2026-09-24 22:15 UTCEG score recompute
  41. 2026-09-24 22:15 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  42. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  43. 2026-09-24 11:02 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  44. 2026-09-24 00:10 UTCEG score recompute
  45. 2026-09-24 00:10 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  46. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  47. 2026-09-23 13:19 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  48. 2026-09-23 07:57 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  49. 2026-09-22 21:05 UTCEG score recompute
  50. 2026-09-22 21:05 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  51. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  52. 2026-09-22 10:14 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  53. 2026-09-21 23:23 UTCEG score recompute
  54. 2026-09-21 23:23 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  55. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  56. 2026-09-21 12:32 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  57. 2026-09-21 01:41 UTCEG score recompute
  58. 2026-09-21 01:41 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  59. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  60. 2026-09-20 14:17 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  61. 2026-09-20 03:26 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  62. 2026-09-19 16:35 UTCEG score recompute
  63. 2026-09-19 16:35 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  64. 2026-09-19 05:44 UTCEG score recompute
  65. 2026-09-19 05:44 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  66. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  67. 2026-09-18 18:51 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  68. 2026-09-18 08:00 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  69. 2026-09-17 21:09 UTCEG score recompute
  70. 2026-09-17 21:09 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  71. 2026-09-17 07:23 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  72. 2026-09-16 20:19 UTCEG score recompute
  73. 2026-09-16 20:19 UTCGHSA enrichmentGHSA-px6v-5f2p-p6xr · GitHub severity HIGH
  74. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 16th percentile
  75. 2026-09-16 09:25 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-77996?
CVE-2026-77996 is a high-severity vulnerability; its CVE record was published on August 25, 2026. Joomla Extension - yootheme.com - Authenticated, privileged stored XSS in YOOtheme Pro 1.0.0-5.0.41 - Lack of escaping in the location custom field lead to a XSS vector.
When was the CVE record for CVE-2026-77996 published?
The CVE record for CVE-2026-77996 was published on August 25, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 23, 2026; the record at its source may have been updated since.
Is CVE-2026-77996 actively exploited?
CVE-2026-77996 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-77996?
CVE-2026-77996 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-77996?
No fix for CVE-2026-77996 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-77996 are linked in the Vendor Advisories panel on this page.

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