How severe is CVE-2025-52667?

CVE-2025-52667 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-2025-52667 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-2025-52667?

CVE-2025-52667 affects Revive-adserver Revive Adserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-52667?

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

Does CVE-2025-52667 have an EU (EUVD) identifier?

Yes. CVE-2025-52667 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198335.

When was CVE-2025-52667 published?

CVE-2025-52667 was published on 2025-11-20 and last updated on 2026-09-26.

CVE-2025-52667

CVE-2025-52667 is a medium-severity vulnerability in Revive-adserver Revive Adserver 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)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-198335
Weakness: CWE-79
Affected product: Revive-adserver Revive Adserver
Published: 2025-11-20
Last modified: 2026-09-26

Description

Missing JSON Content-Type header in a script in Revive Adserver 6.0.1 and 5.5.2 and earlier versions causes a stored XSS attack to be possible for a logged in manager user.

Frequently asked questions

What is CVE-2025-52667?: Missing JSON Content-Type header in a script in Revive Adserver 6.0.1 and 5.5.2 and earlier versions causes a stored XSS attack to be possible for a logged in manager user.
How severe is CVE-2025-52667?: CVE-2025-52667 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-2025-52667 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-2025-52667?: CVE-2025-52667 affects Revive-adserver Revive Adserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-52667?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-52667 have an EU (EUVD) identifier?: Yes. CVE-2025-52667 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-198335.
When was CVE-2025-52667 published?: CVE-2025-52667 was published on 2025-11-20 and last updated on 2026-09-26.

References

https://hackerone.com/reports/3399809

Affected products (1)

cpe:2.3:a:revive-adserver:revive_adserver:*:*:*:*:*:*:*:*

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