CVE-2025-45529: An arbitrary file read vulnerability in the ReadTextAsynchronous function of SSCMS v7.3.1 allows attackers to

Routine

HIGH 7.1DOWNGRADE

CVE-2025-45529 is a high-severity flaw (CVSS 7.1) affecting siteserver cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An arbitrary file read vulnerability in the ReadTextAsynchronous function of SSCMS v7.3.1 allows attackers to read arbitrary files via sending a crafted GET request to /cms/templates/templatesAssetsEditor.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 69%)
CISA exploited list	No
Weakness	CWE-552
Published	2025-05-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sscms

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

Am I affected?

Timeline

2025-05-27 19:15 UTCPublished CVE record published
2026-06-17 09:25 UTCUpdated Record last modified

sscms siteserver cms DOWNGRADE

Affected: 7.3.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.3.1

1. Check installed version

apt-cache policy siteserver-cms || rpm -q siteserver-cms || siteserver-cms --version

2. No fixed release: DOWNGRADE to a release before 7.3.1 (Debian / Ubuntu)

apt-cache madison siteserver-cms sudo apt install siteserver-cms=<VERSION_BEFORE_7.3.1> sudo apt-mark hold siteserver-cms

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

dnf --showduplicates list siteserver-cms sudo dnf downgrade siteserver-cms-<VERSION_BEFORE_7.3.1> sudo dnf versionlock add siteserver-cms

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-2025-45529?

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

Is CVE-2025-45529 being exploited?

CVE-2025-45529 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-2025-45529 affect?

CVE-2025-45529 affects siteserver cms. Severity is high (CVSS 7.1). An arbitrary file read vulnerability in the ReadTextAsynchronous function of SSCMS v7.3.1 allows attackers to read arbitrary files via sending a crafted GET request to /cms/templates/templatesAssetsEditor.

How urgent is CVE-2025-45529?

Priority 38/100. High severity; Public exploit reference

References

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