CVE-2025-15611: The Popup Box WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() f

Q: How do I fix CVE-2025-15611?

popup box: upgrade to 5.5.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-15611 being exploited?

CVE-2025-15611 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-15611 affect?

CVE-2025-15611 affects popup box. Severity is medium (CVSS 5.4). The Popup Box WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() function before saving popup data, allowing unauthenticated attackers to perform Cross-Site Request Forgery attacks. When an authen

Q: How urgent is CVE-2025-15611?

Priority 25/100. Public exploit reference

Routine

MEDIUM 5.4UPGRADE

CVE-2025-15611 is a medium-severity flaw (CVSS 5.4) affecting popup box. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The Popup Box WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() function before saving popup data, allowing unauthenticated attackers to perform Cross-Site Request Forgery attacks. When an authenticated admin visits a malicious page, the attacker can create or modify popups with arbitrary JavaScript that executes in the admin panel and frontend.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-04-07
Last modified	2026-10-07

Publisher (CNA): WPScan · Vendor: ays-pro

Last updated 2026-10-07 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-07 07:16 UTCPublished CVE record published
2026-10-07 09:10 UTCUpdated Record last modified

ays-pro popup box UPGRADE

Affected: < 5.5.0

Fixed in: 5.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy popup-box || rpm -q popup-box || popup-box --version

2. UPGRADE to 5.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade popup-box

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade popup-box

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-15611?

popup box: upgrade to 5.5.0. Exact commands for each OS are on this page.

Is CVE-2025-15611 being exploited?

CVE-2025-15611 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-15611 affect?

CVE-2025-15611 affects popup box. Severity is medium (CVSS 5.4). The Popup Box WordPress plugin before 5.5.0 does not properly validate nonces in the add_or_edit_popupbox() function before saving popup data, allowing unauthenticated attackers to perform Cross-Site Request Forgery attacks. When an authen

How urgent is CVE-2025-15611?

Priority 25/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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