How severe is CVE-2021-40882?

CVE-2021-40882 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-40882 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-40882?

CVE-2021-40882 affects Piwigo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-40882?

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

When was CVE-2021-40882 published?

CVE-2021-40882 was published on 2021-12-14 and last updated on 2026-06-17.

CVE-2021-40882

CVE-2021-40882 is a medium-severity vulnerability in Piwigo with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Piwigo
Published: 2021-12-14
Last modified: 2026-06-17

Description

A Cross Site Scripting (XSS) vulnerability exists in Piwigo 11.5.0 via the system album name and description of the location.

Frequently asked questions

What is CVE-2021-40882?: A Cross Site Scripting (XSS) vulnerability exists in Piwigo 11.5.0 via the system album name and description of the location.
How severe is CVE-2021-40882?: CVE-2021-40882 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-40882 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-40882?: CVE-2021-40882 affects Piwigo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-40882?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-40882 published?: CVE-2021-40882 was published on 2021-12-14 and last updated on 2026-06-17.

References

https://github.com/Piwigo/Piwigo/issues/1477

Affected products (1)

cpe:2.3:a:piwigo:piwigo:11.5.0:*:*:*:*:*:*:*

More vulnerabilities in Piwigo

CVE-2014-4648 — Critical (CVSS 10.0): Unspecified vulnerability in Piwigo before 2.6.3 has unknown impact and attack vectors, related to a "security failure."
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CVE-2023-33362 — Critical (CVSS 9.8): Piwigo 13.6.0 is vulnerable to SQL Injection via in the "profile" function.
CVE-2023-33361 — Critical (CVSS 9.8): Piwigo 13.6.0 is vulnerable to SQL Injection via /admin/permalinks.php.
CVE-2020-19213 — Critical (CVSS 9.8): SQL Injection vulnerability in cat_move.php in piwigo v2.9.5, via the selection parameter to move_categories.
CVE-2021-32615 — Critical (CVSS 9.8): Piwigo 11.4.0 allows admin/user_list_backend.php order[0][dir] SQL Injection.

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