XSS in Jquery-Reply-To-Comment Project

CVE-2021-24543

The jQuery Reply to Comment WordPress plugin through 1.31 does not have any CSRF check when saving its settings, nor sanitise or escape its 'Quote String' and 'Reply String' settings before outputting them in Comments, leading to a Stored Cross-Site Scripting issue.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (33.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 33rd percentile — 33.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2021-24543: held from 0.004 to 0.004.

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

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24543?
CVE-2021-24543 is a medium-severity vulnerability in Jquery-Reply-To-Comment Project, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2021-10-25.
How severe is CVE-2021-24543?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2021-24543 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.