CVE-2025-59593: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend T

Routine

MEDIUM 5.9UPGRADE

CVE-2025-59593 is a medium-severity flaw (CVSS 5.9) affecting colibri page builder. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Extend Themes Colibri Page Builder colibri-page-builder allows Stored XSS.This issue affects Colibri Page Builder: from n/a through < 1.0.334.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-10-22
Last modified	2026-10-23

Publisher (CNA): Patchstack · Vendor: extendthemes

Am I affected?

Timeline

2025-10-22 15:15 UTCPublished CVE record published
2026-10-23 22:10 UTCUpdated Record last modified

extendthemes colibri page builder UPGRADE

Affected: < 1.0.334

Fixed in: 1.0.334

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy colibri-page-builder || rpm -q colibri-page-builder || colibri-page-builder --version

2. UPGRADE to 1.0.334 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade colibri-page-builder

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade colibri-page-builder

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.

References

← Back to latest CVEs