CVE-2026-82451

MEDIUMPre-NVD 6.16.1
EchelonGraph scoreMEDIUM confidence

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

Score 6.1 from GitHub Security Advisory published 2026-08-29. The CNA's CVSS baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.1Exploit: None knownExposed services: Not assessed

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

The CVE record's CNA (VulnCheck) lists getformwork Formwork versions 2.0.0 up to and including 2.3.10 as affected, and getformwork Formwork versions 2.3.11 as unaffected. No release containing a fix is confirmed on record.

Formwork before 2.3.11 contains a stored cross-site scripting vulnerability in visit tracking that records the Referer header host unescaped. Unauthenticated attackers can craft malicious Referer headers to inject markup that executes in administrator browsers when viewing the Statistics panel.

CVSS v3
6.1
EG Score
6.1MEDIUMmedium confidence
EG Risk
28
EG Risk 28/100

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)
Severity61% × 45%
The EG Score, 6.1 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
27th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

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 partial (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)60 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 partial (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 29, 2026

Last Modified

September 24, 2026

Advisory Details (4)

Auto-updated Aug 29, 2026
No fix on record yet. Sources: github.
Web page

Formwork through 2.3.14 Stored XSS via Referer Header | Advisories | VulnCheck

https://www.vulncheck.com/advisories/formwork-through-2.3.14-stored-xss-via-referer-header
Web page

GitHub - getformwork/formwork: 🏗 Formwork is a simple, fast and flexible flat-file CMS that allows you to create and manage websites without the need for a database · GitHub

https://github.com/getformwork/formwork
Web page

formwork/panel/views/statistics/index.php at 89d1908572e55809d6ee1771f59a816494c29573 · getformwork/formwork · GitHub

https://github.com/getformwork/formwork/blob/89d1908572e55809d6ee1771f59a816494c29573/panel/views/statistics/index.php
GitHub advisoryMentions a patch (unverified)

Unauthenticated Stored XSS via Referer Header in Visitor Statistics · Advisory · getformwork/formwork · GitHub

https://github.com/getformwork/formwork/security/advisories/GHSA-hpgc-57cm-66pc

Vendor Advisories for CVE-2026-82451(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 18× in last 7d / 77× 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 98 of 122 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 24 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  2. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  3. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  4. 2026-10-12 14:55 UTCEG score recompute
  5. 2026-10-11 19:19 UTCEG score recompute
  6. 2026-10-11 16:36 UTCEG score recompute
  7. 2026-10-11 13:54 UTCEG score recompute
  8. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  9. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  10. 2026-10-10 05:15 UTCEG score recompute
  11. 2026-10-10 05:15 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  12. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  13. 2026-10-09 02:34 UTCEG score recompute
  14. 2026-10-09 02:34 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  16. 2026-10-08 00:46 UTCEG score recompute
  17. 2026-10-08 00:46 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  19. 2026-10-06 18:36 UTCEG score recompute
  20. 2026-10-06 18:36 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  22. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  23. 2026-10-05 17:03 UTCEG score recompute
  24. 2026-10-05 17:03 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  25. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
Show 73 more
  1. 2026-10-04 15:33 UTCEG score recompute
  2. 2026-10-04 15:33 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  3. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  4. 2026-10-03 13:36 UTCEG score recompute
  5. 2026-10-03 13:36 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  6. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  7. 2026-10-02 06:54 UTCEG score recompute
  8. 2026-10-02 06:54 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  9. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  10. 2026-10-01 05:25 UTCEG score recompute
  11. 2026-10-01 05:25 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  12. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-09-30 03:48 UTCEG score recompute
  14. 2026-09-30 03:48 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  15. 2026-09-28 21:19 UTCEG score recompute
  16. 2026-09-28 21:19 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  17. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  18. 2026-09-27 19:48 UTCEG score recompute
  19. 2026-09-27 19:48 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  20. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  21. 2026-09-26 18:17 UTCEG score recompute
  22. 2026-09-26 18:17 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  23. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  24. 2026-09-25 16:33 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  25. 2026-09-24 14:56 UTCEG score recompute
  26. 2026-09-24 14:56 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  27. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  28. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  29. 2026-09-23 17:24 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  30. 2026-09-22 20:04 UTCEG score recompute
  31. 2026-09-22 20:04 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  32. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  33. 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  34. 2026-09-21 18:34 UTCEG score recompute
  35. 2026-09-21 18:34 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  36. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  37. 2026-09-20 17:04 UTCEG score recompute
  38. 2026-09-20 17:04 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  39. 2026-09-19 15:34 UTCEG score recompute
  40. 2026-09-19 15:34 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  41. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  42. 2026-09-18 13:59 UTCEG score recompute
  43. 2026-09-18 13:59 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  44. 2026-09-17 12:29 UTCEG score recompute
  45. 2026-09-17 12:28 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  46. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  47. 2026-09-16 10:55 UTCEG score recompute
  48. 2026-09-16 10:55 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  49. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  50. 2026-09-15 09:25 UTCEG score recompute
  51. 2026-09-15 09:25 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  52. 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  53. 2026-09-14 07:55 UTCEG score recompute
  54. 2026-09-14 07:55 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  55. 2026-09-13 06:25 UTCEG score recompute
  56. 2026-09-13 06:25 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  57. 2026-09-12 04:55 UTCEG score recompute
  58. 2026-09-12 04:55 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  59. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  60. 2026-09-11 03:25 UTCEG score recompute
  61. 2026-09-11 03:25 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  62. 2026-09-10 01:55 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  63. 2026-09-09 00:25 UTCEG score recompute
  64. 2026-09-09 00:25 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  65. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  66. 2026-09-07 20:41 UTCEG score recompute
  67. 2026-09-07 20:41 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  68. 2026-09-06 19:09 UTCEG score recompute
  69. 2026-09-06 19:09 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  70. 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.2% · 10th percentile
  71. 2026-09-05 17:37 UTCEG score recompute
  72. 2026-09-05 17:37 UTCGHSA enrichmentGHSA-3p45-hx6j-c7f5 · GitHub CVSS 6.1
  73. 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.2% · 10th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82451?
CVE-2026-82451 is a medium-severity vulnerability; its CVE record was published on August 29, 2026. Formwork before 2.3.11 contains a stored cross-site scripting vulnerability in visit tracking that records the Referer header host unescaped. Unauthenticated attackers can craft malicious Referer headers to inject markup that executes in administrator browsers when viewing the Statistics panel.
When was CVE-2026-82451 made public?
CVE-2026-82451 was made public on August 26, 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 August 29, 2026. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-82451 actively exploited?
CVE-2026-82451 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-82451?
CVE-2026-82451 has a CVSS base score of 6.1 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-82451?
No fix for CVE-2026-82451 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 CVE record's CNA (VulnCheck) lists getformwork Formwork versions 2.0.0 up to and including 2.3.10 as affected, and getformwork Formwork versions 2.3.11 as unaffected. No release containing a fix is confirmed on record. The vendor advisories EchelonGraph has for CVE-2026-82451 are linked in the Vendor Advisories panel on this page.

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