CVE-2026-13707 json
Session fixation attacks on improperly configured OAuth 1.0a tools
published 2026-07-01 4 mo ago modified 2026-10-25 14 d ago also EUVD-2026-41033
- cvss
- 7.6
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- mediawiki mediawiki 1.43.9, 1.44.6, 1.45.4
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 0.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 0.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L |
Affected products
- Wikimedia Foundation OAuth
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
phabricator.wikimedia.org
/T428324
permissions-required
Sources
- CVE List CVE-2026-13707
- NVD CVE-2026-13707
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