CVE-2025-21612

HIGHNVD 8.68.6—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.6 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Elevated
8.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.6Exploit: Elevated riskExposed: 0

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

TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Prior to 2.7.2, TabberTransclude.php doesn't escape the user-supplied page name when outputting, so an XSS payload as the page name can be used here. This vulnerability is fixed in 2.7.2.

CVSS v3
8.6
EG Score
8.6(medium)
EG Risk
55(Track*)
EG Risk 55/100SSVC: Track*

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
Severity86% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

January 6, 2025

Last Modified

April 15, 2026

Advisory Details (3)

Auto-updated Sep 2, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

XSS in TabberTransclude in Extension:TabberNeue · Advisory · StarCitizenTools/mediawiki-extensions-TabberNeue · GitHub

https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/security/advisories/GHSA-4x6x-8rm8-c37j
github_commit Patch Available

commit f229cab099c6 (StarCitizenTools/mediawiki-extensions-TabberNeue)

Patch available: StarCitizenTools/mediawiki-extensions-TabberNeue v2.7.2 (contains commit f229cab099c6)

https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/f229cab099c69006e25d4bad3579954e481dc566
github_commit Patch Available

commit d8c3db4e5935 (StarCitizenTools/mediawiki-extensions-TabberNeue)

Patch available: StarCitizenTools/mediawiki-extensions-TabberNeue v2.1.0 (contains commit d8c3db4e5935)

https://github.com/StarCitizenTools/mediawiki-extensions-TabberNeue/commit/d8c3db4e5935476e496d979fb01f775d3d3282e6

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFixed inDependents
starcitizentools/tabber-neuev1.9.1 ... v2.7.1 (14 versions)2.7.2—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 28× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

Showing the most recent 100 of 175 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-21612?
CVE-2025-21612 is a high vulnerability published on January 6, 2025. TabberNeue is a MediaWiki extension that allows the wiki to create tabs. Prior to 2.7.2, TabberTransclude.php doesn't escape the user-supplied page name when outputting, so an XSS payload as the page name can be used here. This vulnerability is fixed in 2.7.2.
When was CVE-2025-21612 disclosed?
CVE-2025-21612 was first published in the National Vulnerability Database on January 6, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-21612 actively exploited?
CVE-2025-21612 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.7% of all scored CVEs.
What is the CVSS score of CVE-2025-21612?
CVE-2025-21612 has a CVSS v3 base score of 8.6 (NVD).
How do I remediate CVE-2025-21612?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-21612, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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