Affected versions: ≥ 5.0.0 and < 6.0.3
Full advisory: nvd.nist.gov
CVE-2026-23900MediumCVSS 6.5
Phoca Maps (com_phocamaps) 5.0.0 to below 6.0.3 - Multiple Stored XSS
Phoca Maps. CVE-2026-23900: multiple stored XSS vulnerabilities in the maps and icon rendering logic. Affects 5.0.0-6.0.2, fixed in 6.0.3.
Affected versions: ≥ 5.0.0 and < 6.0.3
Official record: cve.org · NVD
Every connected Joomla site is checked against this rule on each audit, and flagged if it runs an affected version.
How CVE-2026-23900 is scored
The base metrics as CISA-ADP published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.
6.5 Medium
CVSS 3.1, scored by CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NHow it is reached
- AV:N Attack vector
- Network. Reachable across the internet
- AC:L Attack complexity
- Low. Nothing to work around, it just works
- PR:N Privileges required
- None. No account needed
- UI:N User interaction
- None. Nobody has to be tricked into anything
- S:U Scope
- Unchanged. Contained to the extension it is in
What it does
- C:L Confidentiality
- Low. Some data can be read
- I:L Integrity
- Low. Some data can be altered
- A:N Availability
- None. The site stays up
Affected extensions and versions
Running an affected version on a site you manage?
A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.
Rules current as of 3 October 2026.