CVE-2021-24988

WP RSS Aggregator < 4.19.3 - Subscriber+ Stored Cross-Site Scripting

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.

Affected

WP RSS Aggregator – News Feeds, Autoblogging, Youtube Video Feeds and More

CVSS v3.1 NVD

5.4 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0 NVD

3.5 LOWAV:N/AC:M/Au:S/C:N/I:P/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 20th percentile

Published

2021-12-27

Updated

2024-08-03

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/0742483b-6314-451b-a63a-536fd1e14845

References

• CVE Record
• NVD entry