What is CVE-2022-35509?

CVE-2022-35509 is a medium-severity vulnerability in Eyoucms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-08-10.

How severe is CVE-2022-35509?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2022-35509 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Eyoucms

CVE-2022-35509

An issue was discovered in EyouCMS 1.5.8. There is a Storage XSS vulnerability that can allows an attacker to execute arbitrary Web scripts or HTML by injecting a special payload via the title parameter in the foreground contribution, allowing the attacker to obtain sensitive information.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-08-10 · last modified 2026-06-23.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.8th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Eyoucms — versions 1.5.8

Weakness classification (CWE)

Public proof-of-concept exploits

References

github.com/eyoucms/eyoucms/issues/25 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2022-35509?: CVE-2022-35509 is a medium-severity vulnerability in Eyoucms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-08-10.
How severe is CVE-2022-35509?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2022-35509 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.