How severe is CVE-2025-13079?

CVE-2025-13079 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-13079 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.

How do I fix CVE-2025-13079?

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

Does CVE-2025-13079 have an EU (EUVD) identifier?

Yes. CVE-2025-13079 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207887.

When was CVE-2025-13079 published?

CVE-2025-13079 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2025-13079

CVE-2025-13079 is a medium-severity vulnerability with a CVSS 3.x base score of 5.3. 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-1241.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207887
Weakness: CWE-1241
Published: 2026-02-19
Last modified: 2026-06-17

Description

The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address

Frequently asked questions

What is CVE-2025-13079?: The Popup Builder – Create highly converting, mobile friendly marketing popups. plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 4.4.2. This is due to the plugin generating predictable unsubscribe tokens using deterministic data. This makes it possible for unauthenticated attackers to unsubscribe arbitrary subscribers from mailing lists via brute-forcing the unsubscribe token, granted they know the victim's email address
How severe is CVE-2025-13079?: CVE-2025-13079 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-13079 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.
How do I fix CVE-2025-13079?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-13079 have an EU (EUVD) identifier?: Yes. CVE-2025-13079 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207887.
When was CVE-2025-13079 published?: CVE-2025-13079 was published on 2026-02-19 and last updated on 2026-06-17.

References

Other CWE-1241 vulnerabilities

CVE-2023-4695 — High (CVSS 8.1): Use of Predictable Algorithm in Random Number Generator in GitHub repository pkp/pkp-lib prior to 3.3.0-16.
CVE-2026-6420 — Medium (CVSS 6.3): A flaw was found in Keylime. An attacker with root access on an enrolled monitored machine, where the Keylime agent…
CVE-2025-32056 — Medium (CVSS 4.0): The anti-theft protection mechanism can be bypassed by attackers due to weak response generation algorithms for the…

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