CVE-2025-44110: FluxBB 1.5.11 is vulnerable to Cross Site Scripting (XSS) in via the Forum Description Field in admin_forums.p

Routine

MEDIUM 5.4DOWNGRADE

CVE-2025-44110 is a medium-severity flaw (CVSS 5.4) affecting fluxbb. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FluxBB 1.5.11 is vulnerable to Cross Site Scripting (XSS) in via the Forum Description Field in admin_forums.php.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-05-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fluxbb

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-05-15 18:15 UTCPublished CVE record published
2026-06-17 09:24 UTCUpdated Record last modified

fluxbb fluxbb DOWNGRADE

Affected: 1.5.11

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.11

1. Check installed version

apt-cache policy fluxbb || rpm -q fluxbb || fluxbb --version

2. No fixed release: DOWNGRADE to a release before 1.5.11 (Debian / Ubuntu)

apt-cache madison fluxbb sudo apt install fluxbb=<VERSION_BEFORE_1.5.11> sudo apt-mark hold fluxbb

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list fluxbb sudo dnf downgrade fluxbb-<VERSION_BEFORE_1.5.11> sudo dnf versionlock add fluxbb

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-44110?

fluxbb: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-44110 being exploited?

CVE-2025-44110 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-44110 affect?

CVE-2025-44110 affects fluxbb. Severity is medium (CVSS 5.4). FluxBB 1.5.11 is vulnerable to Cross Site Scripting (XSS) in via the Forum Description Field in admin_forums.php.

How urgent is CVE-2025-44110?

Priority 28/100. Public exploit reference

Software pages

PHP vulnerabilities

References

← Back to latest CVEs