What is CVE-2020-20977?

CVE-2020-20977 is a medium-severity vulnerability in Ukcms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-12.

How severe is CVE-2020-20977?

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

Is CVE-2020-20977 known to be exploited?

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

XSS in Ukcms

CVE-2020-20977

A stored cross site scripting (XSS) vulnerability in index.php/legend/6.html of UK CMS v1.1.10 allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the Comments section.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.005 (40.1th percentile) — read the EPSS interpretation.

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.

Affected products

Ukcms — versions 1.1.10
N/a — versions n/a

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

Live-Hack-CVE/CVE-2020-20977

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2020-20977?: CVE-2020-20977 is a medium-severity vulnerability in Ukcms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-12.
How severe is CVE-2020-20977?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2020-20977 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.