How severe is CVE-2021-24882?

CVE-2021-24882 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-24882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24882?

CVE-2021-24882 affects Tribulant Slideshow Gallery. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24882?

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

When was CVE-2021-24882 published?

CVE-2021-24882 was published on 2021-11-23 and last updated on 2026-06-17.

CVE-2021-24882

CVE-2021-24882 is a medium-severity vulnerability in Tribulant Slideshow Gallery with a CVSS 3.x base score of 4.8. 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 4.8)
CVSS v2: 3.5
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Tribulant Slideshow Gallery
Published: 2021-11-23
Last modified: 2026-06-17

Description

The Slideshow Gallery WordPress plugin before 1.7.4 does not sanitise and escape the Slide "Title", "Description", and Gallery "Title" fields, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed

Frequently asked questions

What is CVE-2021-24882?: The Slideshow Gallery WordPress plugin before 1.7.4 does not sanitise and escape the Slide "Title", "Description", and Gallery "Title" fields, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed
How severe is CVE-2021-24882?: CVE-2021-24882 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-24882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24882?: CVE-2021-24882 affects Tribulant Slideshow Gallery. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24882 published?: CVE-2021-24882 was published on 2021-11-23 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/6d71816c-8267-4b84-9087-191fbb976e72

Affected products (1)

cpe:2.3:a:tribulant:slideshow_gallery:*:*:*:*:*:wordpress:*:*

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