How severe is CVE-2021-24831?

CVE-2021-24831 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2021-24831 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24831?

CVE-2021-24831 affects Rich-web Tab. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24831?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-24831 published?

CVE-2021-24831 was published on 2022-01-03 and last updated on 2026-06-17.

CVE-2021-24831

CVE-2021-24831 is a high-severity vulnerability in Rich-web Tab with a CVSS 3.x base score of 7.5. 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-425.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-425
Affected product: Rich-web Tab
Published: 2022-01-03
Last modified: 2026-06-17

Description

All AJAX actions of the Tab WordPress plugin before 1.3.2 are available to both unauthenticated and authenticated users, allowing unauthenticated attackers to modify various data in the plugin, such as add/edit/delete arbitrary tabs.

Frequently asked questions

What is CVE-2021-24831?: All AJAX actions of the Tab WordPress plugin before 1.3.2 are available to both unauthenticated and authenticated users, allowing unauthenticated attackers to modify various data in the plugin, such as add/edit/delete arbitrary tabs.
How severe is CVE-2021-24831?: CVE-2021-24831 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2021-24831 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24831?: CVE-2021-24831 affects Rich-web Tab. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24831?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-24831 published?: CVE-2021-24831 was published on 2022-01-03 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/75ed9f5f-e091-4372-a6cb-57958ad5f900

Affected products (1)

cpe:2.3:a:rich-web:tab:*:*:*:*:*:wordpress:*:*

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