Your RSA-2048 keys break in 2030. Find every one of them before attackers do.
📦 npm

CVE-2025-29049

MEDIUM

CVE-2025-29049 is a medium-severity (CVSS 6.3) Cross-site Scripting (XSS) vulnerability in mathlive. O3 Security confirms whether CVE-2025-29049 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

MathLive's Lack of Escaping of HTML allows for XSS

Also known asGHSA-qwj6-q94f-8425
Published
Apr 1, 2025
Updated
Jul 15, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected

Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.

mathlivenpm
199Kdownloads / week

Description

Cross Site Scripting vulnerability in arnog MathLive Versions v0.103.0 and before (fixed in 0.104.0) allows an attacker to execute arbitrary code via the MathLive function.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmmathliveall versions0.104.0

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mathlive. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update mathlive to 0.104.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-29049 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether CVE-2025-29049 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to CVE-2025-29049. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Cross Site Scripting vulnerability in arnog MathLive Versions v0.103.0 and before (fixed in 0.104.0) allows an attacker to execute arbitrary code via the MathLive function.
O3 Security · Impact-Aware SCA

Is CVE-2025-29049 in your dependencies?

O3 detects CVE-2025-29049 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.