CVE-2024-57052: An issue in youdiancms v.9.5.20 and before allows a remote attacker to escalate privileges via the sessionID p

Q: How do I fix CVE-2024-57052?

youdiancms: upgrade to newer than 9.5.20. Exact commands for each OS are on this page.

Q: Is CVE-2024-57052 being exploited?

CVE-2024-57052 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-57052 affect?

CVE-2024-57052 affects youdiancms. Severity is critical (CVSS 9.8). An issue in youdiancms v.9.5.20 and before allows a remote attacker to escalate privileges via the sessionID parameter in the index.php file.

Q: How urgent is CVE-2024-57052?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2024-57052 is a critical-severity flaw (CVSS 9.8) affecting youdiancms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in youdiancms v.9.5.20 and before allows a remote attacker to escalate privileges via the sessionID parameter in the index.php file.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.5% (top 57%)
CISA exploited list	No
Weakness	CWE-384
Published	2025-01-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: youdiancms

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

Am I affected?

Timeline

2025-01-27 23:15 UTCPublished CVE record published
2026-06-17 08:13 UTCUpdated Record last modified

youdiancms youdiancms UPGRADE

Affected: <= 9.5.20

Fixed in: newer than 9.5.20

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 9.5.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade youdiancms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade youdiancms

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2024-57052?

youdiancms: upgrade to newer than 9.5.20. Exact commands for each OS are on this page.

Is CVE-2024-57052 being exploited?

CVE-2024-57052 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-2024-57052 affect?

CVE-2024-57052 affects youdiancms. Severity is critical (CVSS 9.8). An issue in youdiancms v.9.5.20 and before allows a remote attacker to escalate privileges via the sessionID parameter in the index.php file.

How urgent is CVE-2024-57052?

Priority 50/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

PHP vulnerabilities

Related CVEs

CVE-2025-3533 MEDIUM 4.3 DOWNGRADE A vulnerability, which was classified as problematic, has been found in YouDianCMS 9.5.21
CVE-2025-3532 MEDIUM 4.3 DOWNGRADE A vulnerability classified as problematic was found in YouDianCMS 9.5.21
CVE-2025-3531 MEDIUM 4.3 DOWNGRADE A vulnerability classified as problematic has been found in YouDianCMS 9.5.21
CVE-2024-7330 MEDIUM 6.3 DOWNGRADE A vulnerability has been found in YouDianCMS 7 and classified as critical
CVE-2024-7329 MEDIUM 6.3 DOWNGRADE A vulnerability, which was classified as critical, was found in YouDianCMS 7

References

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