CVE-2025-46228: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien

Q: How do I fix CVE-2025-46228?

event post: upgrade to 5.10.0. Exact commands for each OS are on this page.

Q: Is CVE-2025-46228 being exploited?

CVE-2025-46228 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-2025-46228 affect?

CVE-2025-46228 affects event post. Severity is medium (CVSS 6.5). Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post event-post allows DOM-Based XSS.This issue affects Event post: from n/a through <= 5.9.11.

Q: How urgent is CVE-2025-46228?

Priority 26/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2025-46228 is a medium-severity flaw (CVSS 6.5) affecting event post. 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 Bastien Ho Event post event-post allows DOM-Based XSS.This issue affects Event post: from n/a through <= 5.9.11.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.2% (top 87%)
CISA exploited list	No
Weakness	CWE-79
Published	2025-04-22
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: avecnous

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-04-22 10:15 UTCPublished CVE record published
2026-06-17 09:26 UTCUpdated Record last modified

avecnous event post UPGRADE

Affected: < 5.10.0

Fixed in: 5.10.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy event-post || rpm -q event-post || event-post --version

2. UPGRADE to 5.10.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade event-post

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade event-post

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-2025-46228?

event post: upgrade to 5.10.0. Exact commands for each OS are on this page.

Is CVE-2025-46228 being exploited?

CVE-2025-46228 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-2025-46228 affect?

CVE-2025-46228 affects event post. Severity is medium (CVSS 6.5). Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Bastien Ho Event post event-post allows DOM-Based XSS.This issue affects Event post: from n/a through <= 5.9.11.

How urgent is CVE-2025-46228?

Priority 26/100. No elevated risk signals yet.

Related CVEs

CVE-2024-10186 MEDIUM 6.4 UPGRADE The Event post plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's events_cal s

References

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