How severe is CVE-2025-71310?

CVE-2025-71310 has a CVSS 4.0 base score of 1.8, rated low severity.

Is CVE-2025-71310 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-71310?

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

Does CVE-2025-71310 have an EU (EUVD) identifier?

Yes. CVE-2025-71310 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209927.

When was CVE-2025-71310 published?

CVE-2025-71310 was published on 2026-05-26 and last updated on 2026-06-17.

CVE-2025-71310

CVE-2025-71310 is a low-severity vulnerability with a CVSS 4.0 base score of 1.8. 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-80.

Key facts

Severity: Low (CVSS 4.0 base score 1.8)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209927
Weakness: CWE-80
Published: 2026-05-26
Last modified: 2026-06-17

Description

The GDPR cookies module for Backdrop CMS (before 1.x-1.3.5) doesn't sufficiently protect visitors from Cross Site Scripting (XSS) if a malicious value has been provided for the optional 'Info content' field for the YouTube service. This is mitigated by the fact that an attacker must have a role with the permission "Create a GDPR Cookies Service" or "Edit any GDPR Cookies Service" and a site must have added a YouTube service as configuration.

Frequently asked questions

What is CVE-2025-71310?: The GDPR cookies module for Backdrop CMS (before 1.x-1.3.5) doesn't sufficiently protect visitors from Cross Site Scripting (XSS) if a malicious value has been provided for the optional 'Info content' field for the YouTube service. This is mitigated by the fact that an attacker must have a role with the permission "Create a GDPR Cookies Service" or "Edit any GDPR Cookies Service" and a site must have added a YouTube service as configuration.
How severe is CVE-2025-71310?: CVE-2025-71310 has a CVSS 4.0 base score of 1.8, rated low severity.
Is CVE-2025-71310 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-71310?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-71310 have an EU (EUVD) identifier?: Yes. CVE-2025-71310 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209927.
When was CVE-2025-71310 published?: CVE-2025-71310 was published on 2026-05-26 and last updated on 2026-06-17.

References

https://backdropcms.org/security/sa-contrib-2025-013

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