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)
Published · last modified .
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: 0.003 (19.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Wprssaggregator Wp Rss Aggregator
- Wp Rss Aggregator – News Feeds, Autoblogging, Youtube Video Feeds And More — versions 4.19.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- wpscan.com/vulnerability/0742483b-6314-451b-a63a-536fd1e14845 (Exploit, Third Party Advisory)
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.