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CVE-2025-53501

Content Access Bypass in Scribunto

HIGH
8.8
CVSS Score
Published: July 3, 2025 at 04:15 PM UTC
Updated: June 17, 2026 at 09:38 AM UTC
2 products affected across 2 vendorsScribuntoScribunto

Using Mediawiki - Scribunto Extension by Wikimedia Foundation?

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Improper Access Control vulnerability in Wikimedia Foundation Mediawiki - Scribunto Extension allows : Accessing Functionality Not Properly Constrained by Authorization.This issue affects Mediawiki - Scribunto Extension: from 1.39.X before 1.39.12, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Scribunto· Xtexmediawiki
95%
All versions
mediawiki-mediawiki (environment)
Scribunto· Wikimediamediawiki
60%
1.39.x ≤ v < 1.39.131.42.x ≤ v < 1.42.71.43.x ≤ v < 1.43.21.39.x1.42.x1.43.x
Affected range stops below 1.39.13, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.42.7, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.43.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

Patch
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Scribunto/+/1164541
ExploitIssue TrackingPatch
Source: c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
https://phabricator.wikimedia.org/T397524

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-284NVD-CWE-noinfo

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