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High 7.6Published Jul 1, 2026

CVE-2026-13707Session fixation vulnerability in Wikimedia Foundation OAuth.

Updated under an hour ago ()

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It affects mediawiki. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Session fixation vulnerability in Wikimedia Foundation OAuth. This vulnerability is associated with program files src/Backend/MWOAuthServer.Php. This issue affects OAuth: from * through 1.46.0, 1.45.4, 1.44.6, 1.43.9.

CVSS
7.6 HIGH (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L
Weakness (CWE)
CWE-384
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Not given
NVD analysis
Analyzed
Record last updated
Jul 13, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
mediawiki mediawiki
mediawiki:mediawiki
from 1.43.0 before 1.43.9; from 1.44.0 before 1.44.6; from 1.45.0 before 1.45.4; 1.46.0
NVD

References

  • permissions-required

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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