CVE-2025-25789: FoxCMS v1.2.5 was discovered to contain a remote code execution (RCE) vulnerability via the index() method at

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2025-25789 is a critical-severity flaw (CVSS 9.8) affecting foxcms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

FoxCMS v1.2.5 was discovered to contain a remote code execution (RCE) vulnerability via the index() method at \controller\Sitemap.php.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-94
Published	2025-02-26
Last modified	2026-07-05

Publisher (CNA): MITRE · Vendor: foxcms

Last updated 2026-07-05 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-02-26 15:15 UTCPublished CVE record published
2026-07-05 01:21 UTCUpdated Record last modified

foxcms foxcms DOWNGRADE

Affected: 1.2.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.5

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.2.5 (Debian / Ubuntu)

apt-cache madison foxcms sudo apt install foxcms=<VERSION_BEFORE_1.2.5> sudo apt-mark hold foxcms

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

dnf --showduplicates list foxcms sudo dnf downgrade foxcms-<VERSION_BEFORE_1.2.5> sudo dnf versionlock add foxcms

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-2025-25789?

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

Is CVE-2025-25789 being exploited?

CVE-2025-25789 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-2025-25789 affect?

CVE-2025-25789 affects foxcms. Severity is critical (CVSS 9.8). FoxCMS v1.2.5 was discovered to contain a remote code execution (RCE) vulnerability via the index() method at \controller\Sitemap.php.

How urgent is CVE-2025-25789?

Priority 62/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-10251 MEDIUM 6.3 UPGRADE A vulnerability was detected in FoxCMS up to 1.24
CVE-2025-12920 LOW 2.4 UPGRADE A flaw has been found in qianfox FoxCMS up to 1.2.16
CVE-2025-11306 MEDIUM 4.3 UPGRADE A vulnerability was found in qianfox FoxCMS up to 1.2
CVE-2025-55422 HIGH 8.8 DOWNGRADE In FoxCMS 1.2.6, there is a reflected Cross Site Scripting (XSS) vulnerability in /index.php/plus.
CVE-2025-55409 HIGH 8.8 DOWNGRADE FoxCMS 1.2.6, there is a Cross Site Scripting vulnerability in /index.php/article

References

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