CVE-2025-67436: Authenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel acc

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MEDIUM 6.5DOWNGRADE

CVE-2025-67436 is a medium-severity flaw (CVSS 6.5) affecting pluxml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Authenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel access to inject a malicious PHP webshell into a theme file (e.g., home.php).

Why this priority

Public exploit reference

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-77
Published	2025-12-22
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pluxml

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

Am I affected?

Timeline

2025-12-22 22:16 UTCPublished CVE record published
2026-06-17 09:57 UTCUpdated Record last modified

pluxml pluxml DOWNGRADE

Affected: 5.8.22

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.8.22

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.8.22 (Debian / Ubuntu)

apt-cache madison pluxml sudo apt install pluxml=<VERSION_BEFORE_5.8.22> sudo apt-mark hold pluxml

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

dnf --showduplicates list pluxml sudo dnf downgrade pluxml-<VERSION_BEFORE_5.8.22> sudo dnf versionlock add pluxml

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-2025-67436?

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

Is CVE-2025-67436 being exploited?

CVE-2025-67436 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-2025-67436 affect?

CVE-2025-67436 affects pluxml. Severity is medium (CVSS 6.5). Authenticated Remote Code Execution (RCE) in PluXml CMS 5.8.22 allows an attacker with administrator panel access to inject a malicious PHP webshell into a theme file (e.g., home.php).

How urgent is CVE-2025-67436?

Priority 40/100. Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

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CVE-2025-70129 MEDIUM 5.3 UPGRADE If the anti spam-captcha functionality in PluXml versions 5.8.22 and earlier is enabled, a captcha challenge i

References

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