How severe is CVE-2025-39489?

CVE-2025-39489 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-39489 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-39489?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-39489 have an EU (EUVD) identifier?

Yes. CVE-2025-39489 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27959.

When was CVE-2025-39489 published?

CVE-2025-39489 was published on 2025-05-23 and last updated on 2026-06-17.

CVE-2025-39489

CVE-2025-39489 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-266.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-27959
Weakness: CWE-266
Published: 2025-05-23
Last modified: 2026-06-17

Description

Incorrect Privilege Assignment vulnerability in pebas CouponXL couponxl allows Privilege Escalation.This issue affects CouponXL: from n/a through <= 4.5.0.

Frequently asked questions

What is CVE-2025-39489?: Incorrect Privilege Assignment vulnerability in pebas CouponXL couponxl allows Privilege Escalation.This issue affects CouponXL: from n/a through <= 4.5.0.
How severe is CVE-2025-39489?: CVE-2025-39489 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-39489 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-39489?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-39489 have an EU (EUVD) identifier?: Yes. CVE-2025-39489 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-27959.
When was CVE-2025-39489 published?: CVE-2025-39489 was published on 2025-05-23 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Theme/couponxl/vulnerability/wordpress-couponxl-4-5-0-privilege-escalation-vulnerability?_s_id=cve

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