CVE-2026-58027

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 70% 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, secondary
Trending — 4 sources updated this week
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 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 AbuseFilter.

This vulnerability is associated with program files includes/Api/QueryAbuseFilters.Php.

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

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
30.2%
KEV
Not listed

Published

July 1, 2026

Last Modified

July 1, 2026

Advisory Details (1)

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

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https://phabricator.wikimedia.org/T406954

Vendor Advisories for CVE-2026-58027(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 22× in last 7d / 22× 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.

  1. 2026-07-07 03:25 UTCEG score recompute
  2. 2026-07-07 03:25 UTCGHSA enrichment
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 16:27 UTCEPSS rescore
  5. 2026-07-06 05:45 UTCEG score recompute
  6. 2026-07-06 05:44 UTCGHSA enrichment
  7. 2026-07-06 02:23 UTCEPSS rescore
  8. 2026-07-06 02:23 UTCEPSS rescore
  9. 2026-07-05 08:03 UTCEG score recompute
  10. 2026-07-05 08:02 UTCGHSA enrichment
  11. 2026-07-05 02:31 UTCEPSS rescore
  12. 2026-07-05 02:30 UTCEPSS rescore
  13. 2026-07-04 10:15 UTCEG score recompute
  14. 2026-07-04 10:15 UTCGHSA enrichment
  15. 2026-07-04 06:31 UTCEPSS rescore
  16. 2026-07-04 06:31 UTCEPSS rescore
  17. 2026-07-03 12:33 UTCEG score recompute
  18. 2026-07-03 12:33 UTCGHSA enrichment
  19. 2026-07-02 14:48 UTCEG score recompute
  20. 2026-07-02 14:48 UTCGHSA enrichment
  21. 2026-07-01 17:07 UTCEG score recompute
  22. 2026-07-01 17:06 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-58027?
CVE-2026-58027 is a medium vulnerability published on July 1, 2026. Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation AbuseFilter. This vulnerability is associated with program files includes/Api/QueryAbuseFilters.Php. This issue affects AbuseFilter: from * before 1.46.0, 1.45.4, 1.44.6, 1.43.9.
When was CVE-2026-58027 disclosed?
CVE-2026-58027 was first published in the National Vulnerability Database on July 1, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58027 actively exploited?
CVE-2026-58027 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-58027?
CVE-2026-58027 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-58027?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-58027, 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

Explore the affected products and dependency analysis for CVE-2026-58027

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