CVE-2026-58033

MEDIUMNVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

Score 6.5 from GitHub Security Advisory published 2026-07-01. NVD baseline CVSS 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 3 sources updated this week
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

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

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki.

This vulnerability is associated with program files includes/Actions/InfoAction.Php.

This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: 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
Severity65% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 9, 2026

Advisory Details (1)

Auto-updated Jul 3, 2026
No patch confirmed yet.
generic

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https://phabricator.wikimedia.org/T427235

Vendor Advisories for CVE-2026-58033(1)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
mediawiki1:1.35.11-1~deb11u1 ... 1:1.43.9+dfsg-1~deb13u1 (56 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
mediawiki1:1.39.10-1 ... 1:1.43.9+dfsg-1~deb13u1 (30 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
mediawiki1:1.43.3+dfsg-1 ... 1:1.43.8+dfsg-2 (8 versions)1:1.43.9+dfsg-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
mediawiki1:1.43.3+dfsg-1 ... 1:1.43.9+dfsg-1~deb13u1 (9 versions)1:1.43.9+dfsg-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 55× 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 158 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-58033?
CVE-2026-58033 is a medium vulnerability published on July 1, 2026. Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/Actions/InfoAction.Php. This issue affects MediaWiki: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
When was CVE-2026-58033 disclosed?
CVE-2026-58033 was first published in the National Vulnerability Database on July 1, 2026, with the most recent update on July 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58033 actively exploited?
CVE-2026-58033 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 65.2% of all scored CVEs.
What is the CVSS score of CVE-2026-58033?
CVE-2026-58033 has a CVSS v3 base score of 6.5 (NVD).
How do I remediate CVE-2026-58033?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58033, 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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