How severe is CVE-2026-50744?

CVE-2026-50744 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-50744 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-50744?

CVE-2026-50744 affects Revive-adserver Revive Adserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-50744?

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

Does CVE-2026-50744 have an EU (EUVD) identifier?

Yes. CVE-2026-50744 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39600.

When was CVE-2026-50744 published?

CVE-2026-50744 was published on 2026-06-26 and last updated on 2026-06-29.

CVE-2026-50744

CVE-2026-50744 is a medium-severity vulnerability in Revive-adserver Revive Adserver with a CVSS 3.x base score of 4.3. 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-284.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-39600
Weakness: CWE-284
Affected product: Revive-adserver Revive Adserver
Published: 2026-06-26
Last modified: 2026-06-29

Description

A bypass to the admin‑only restriction of the XML‑RPC API in Revive Adserver 6.0.7. The API response for the ox.login method returned a session ID cookie in the HTTP headers, and although the method correctly returned an error, the associated session was not invalidated. As a result, the leaked session ID could be used to perform subsequent API calls without restrictions.

Frequently asked questions

What is CVE-2026-50744?: A bypass to the admin‑only restriction of the XML‑RPC API in Revive Adserver 6.0.7. The API response for the ox.login method returned a session ID cookie in the HTTP headers, and although the method correctly returned an error, the associated session was not invalidated. As a result, the leaked session ID could be used to perform subsequent API calls without restrictions.
How severe is CVE-2026-50744?: CVE-2026-50744 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-50744 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-50744?: CVE-2026-50744 affects Revive-adserver Revive Adserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-50744?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-50744 have an EU (EUVD) identifier?: Yes. CVE-2026-50744 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-39600.
When was CVE-2026-50744 published?: CVE-2026-50744 was published on 2026-06-26 and last updated on 2026-06-29.

References

https://hackerone.com/reports/3783738

Affected products (1)

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

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