How severe is CVE-2021-36891?

CVE-2021-36891 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.

Is CVE-2021-36891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-36891?

CVE-2021-36891 affects Supsystic Photo Gallery. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-36891?

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

When was CVE-2021-36891 published?

CVE-2021-36891 was published on 2022-06-15 and last updated on 2026-06-17.

CVE-2021-36891

CVE-2021-36891 is a medium-severity vulnerability in Supsystic Photo 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-352.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 4.3
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-352
Affected product: Supsystic Photo Gallery
Published: 2022-06-15
Last modified: 2026-06-17

Description

Cross-Site Request Forgery (CSRF) vulnerability in Photo Gallery by Supsystic plugin <= 1.15.5 at WordPress allows changing the plugin settings.

Frequently asked questions

What is CVE-2021-36891?: Cross-Site Request Forgery (CSRF) vulnerability in Photo Gallery by Supsystic plugin <= 1.15.5 at WordPress allows changing the plugin settings.
How severe is CVE-2021-36891?: CVE-2021-36891 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity low, and availability low.
Is CVE-2021-36891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-36891?: CVE-2021-36891 affects Supsystic Photo Gallery. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-36891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-36891 published?: CVE-2021-36891 was published on 2022-06-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:supsystic:photo_gallery:*:*:*:*:*:wordpress:*:*

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