CVE-2022-34937: Yuba u5cms v8.3.5 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component savepage.php

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HIGH 8.8DOWNGRADE

CVE-2022-34937 is a high-severity flaw (CVSS 8.8) affecting u5cms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Yuba u5cms v8.3.5 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component savepage.php. This vulnerability allows attackers to execute arbitrary code.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Weakness	CWE-352
Published	2022-08-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yuba

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

Am I affected?

Timeline

2022-08-03 01:15 UTCPublished CVE record published
2026-06-17 04:51 UTCUpdated Record last modified

yuba u5cms DOWNGRADE

Affected: 8.3.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.3.5

1. Check installed version

apt-cache policy u5cms || rpm -q u5cms || u5cms --version

2. No fixed release: DOWNGRADE to a release before 8.3.5 (Debian / Ubuntu)

apt-cache madison u5cms sudo apt install u5cms=<VERSION_BEFORE_8.3.5> sudo apt-mark hold u5cms

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

dnf --showduplicates list u5cms sudo dnf downgrade u5cms-<VERSION_BEFORE_8.3.5> sudo dnf versionlock add u5cms

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-2022-34937?

u5cms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-34937 being exploited?

CVE-2022-34937 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-2022-34937 affect?

CVE-2022-34937 affects u5cms. Severity is high (CVSS 8.8). Yuba u5cms v8.3.5 was discovered to contain a Cross-Site Request Forgery (CSRF) via the component savepage.php. This vulnerability allows attackers to execute arbitrary code.

How urgent is CVE-2022-34937?

Priority 50/100. High severity; Public exploit reference

Software pages

PHP vulnerabilities

Related CVEs

CVE-2022-32444 MEDIUM 6.1 DOWNGRADE An issue was discovered in u5cms verion 8.3.5 There is a URL redirection vulnerability that can cause a user's
CVE-2022-32442 MEDIUM 6.1 DOWNGRADE u5cms version 8.3.5 is vulnerable to Cross Site Scripting (XSS)

References

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