What is CVE-2020-22540?

CVE-2020-22540 is a medium-severity vulnerability in Codologic Codoforum, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-04-15.

How severe is CVE-2020-22540?

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

XSS in Codologic Codoforum

CVE-2020-22540

Stored Cross-Site Scripting (XSS) vulnerability in Codoforum v4.9, allows attackers to execute arbitrary code and obtain sensitive information via crafted payload to Category name component.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2024-04-15 · last modified 2026-06-17.

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: 0.004 (34.4th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Codologic Codoforum — versions 4.9

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

gist.github.com/s4fv4n/0d7a5093886cf41d9c478166e4aeec64 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-22540?: CVE-2020-22540 is a medium-severity vulnerability in Codologic Codoforum, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2024-04-15.
How severe is CVE-2020-22540?: Medium severity. CVSS v3 base score is 5.4 out of 10.