How severe is CVE-2021-24988?

CVE-2021-24988 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24988 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24988?

CVE-2021-24988 affects Wprssaggregator Wp Rss Aggregator. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24988?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-24988 published?

CVE-2021-24988 was published on 2021-12-27 and last updated on 2026-06-17.

CVE-2021-24988

CVE-2021-24988 is a medium-severity vulnerability in Wprssaggregator Wp Rss Aggregator with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-352.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Wprssaggregator Wp Rss Aggregator
Published: 2021-12-27
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-24988?: CVE-2021-24988 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24988 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24988?: CVE-2021-24988 affects Wprssaggregator Wp Rss Aggregator. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24988?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24988 published?: CVE-2021-24988 was published on 2021-12-27 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:a:wprssaggregator:wp_rss_aggregator:*:*:*:*:*:wordpress:*:*

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