How severe is CVE-2021-24603?

CVE-2021-24603 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-2021-24603 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24603?

CVE-2021-24603 affects Geminilabs Site Reviews. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24603?

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

When was CVE-2021-24603 published?

CVE-2021-24603 was published on 2021-09-06 and last updated on 2026-06-17.

CVE-2021-24603

CVE-2021-24603 is a medium-severity vulnerability in Geminilabs Site Reviews 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Geminilabs Site Reviews
Published: 2021-09-06
Last modified: 2026-06-17

Description

The Site Reviews WordPress plugin before 5.13.1 does not sanitise some of its Review Details when adding a review as an admin, which could allow them to perform Cross-Site Scripting attacks when the unfiltered_html is disallowed

Frequently asked questions

What is CVE-2021-24603?: The Site Reviews WordPress plugin before 5.13.1 does not sanitise some of its Review Details when adding a review as an admin, which could allow them to perform Cross-Site Scripting attacks when the unfiltered_html is disallowed
How severe is CVE-2021-24603?: CVE-2021-24603 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-2021-24603 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24603?: CVE-2021-24603 affects Geminilabs Site Reviews. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24603?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24603 published?: CVE-2021-24603 was published on 2021-09-06 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/72aea0e5-1fa7-4827-a173-59982202d323

Affected products (1)

cpe:2.3:a:geminilabs:site_reviews:*:*:*:*:*:wordpress:*:*

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