XSS in Wprssaggregator Wp Rss Aggregator

CVE-2021-24988

The WP RSS Aggregator WordPress plugin before 4.19.3 does not sanitise and escape data before outputting it in the System Info admin dashboard, which could lead to a Stored XSS issue due to the wprss_dismiss_addon_notice AJAX action missing authorisation and CSRF checks, allowing any authenticated users, such as subscriber to call it and set a malicious payload in the addon parameter.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.003 (21.5th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2021-24988?
CVE-2021-24988 is a medium-severity vulnerability in Wprssaggregator Wp Rss Aggregator, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-12-27.
How severe is CVE-2021-24988?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24988 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.