How severe is CVE-2021-24126?

CVE-2021-24126 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-2021-24126 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-24126?

CVE-2021-24126 affects Enviragallery Envira Gallery. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-24126?

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

When was CVE-2021-24126 published?

CVE-2021-24126 was published on 2021-03-18 and last updated on 2026-06-17.

CVE-2021-24126

CVE-2021-24126 is a medium-severity vulnerability in Enviragallery Envira Gallery 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% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Enviragallery Envira Gallery
Published: 2021-03-18
Last modified: 2026-06-17

Description

Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.

Frequently asked questions

What is CVE-2021-24126?: Unvalidated input and lack of output encoding in the Envira Gallery Lite WordPress plugin, versions before 1.8.3.3, did not properly sanitise the images metadata (namely title) before outputting them in the generated gallery, which could lead to privilege escalation.
How severe is CVE-2021-24126?: CVE-2021-24126 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-2021-24126 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-24126?: CVE-2021-24126 affects Enviragallery Envira Gallery. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-24126?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-24126 published?: CVE-2021-24126 was published on 2021-03-18 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/f3952bd1-ac2f-4007-9e19-6c44a22465f3

Affected products (1)

cpe:2.3:a:enviragallery:envira_gallery:*:*:*:*:lite:wordpress:*:*

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