CVE-2025-1105: A vulnerability was found in SiberianCMS 4.20.6

Routine

MEDIUM 4.3DOWNGRADE

CVE-2025-1105 is a medium-severity flaw (CVSS 4.3) affecting siberiancms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability was found in SiberianCMS 4.20.6. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /app/sae/design/desktop/flat of the component HTTP GET Request Handler. The manipulation leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-79, CWE-94
Published	2025-02-07
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: siberiancms

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

Am I affected?

Timeline

2025-02-07 18:15 UTCPublished CVE record published
2026-06-17 08:38 UTCUpdated Record last modified

siberiancms siberiancms DOWNGRADE

Affected: 4.20.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.20.6

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.20.6 (Debian / Ubuntu)

apt-cache madison siberiancms sudo apt install siberiancms=<VERSION_BEFORE_4.20.6> sudo apt-mark hold siberiancms

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

dnf --showduplicates list siberiancms sudo dnf downgrade siberiancms-<VERSION_BEFORE_4.20.6> sudo dnf versionlock add siberiancms

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-2025-1105?

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

Is CVE-2025-1105 being exploited?

CVE-2025-1105 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-2025-1105 affect?

CVE-2025-1105 affects siberiancms. Severity is medium (CVSS 4.3). A vulnerability was found in SiberianCMS 4.20.6. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /app/sae/design/desktop/flat of the component HTTP GET Request Handler. The manipulation lea

How urgent is CVE-2025-1105?

Priority 23/100. No elevated risk signals yet.

Related CVEs

CVE-2024-41702 CRITICAL 9.8 UPGRADE SiberianCMS - CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

References

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