CVE-2023-1021: The amr ical events lists WordPress plugin through 6.6 does not sanitise and escape some of its settings, whic

Q: How do I fix CVE-2023-1021?

amr-ical-events-list: upgrade to newer than 6.6. Exact commands for each OS are on this page.

Q: Is CVE-2023-1021 being exploited?

CVE-2023-1021 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-2023-1021 affect?

CVE-2023-1021 affects amr-ical-events-list. Severity is medium (CVSS 4.8). The amr ical events lists WordPress plugin through 6.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capa

Q: How urgent is CVE-2023-1021?

Priority 31/100. Public exploit reference

Routine

MEDIUM 4.8UPGRADE

CVE-2023-1021 is a medium-severity flaw (CVSS 4.8) affecting amr-ical-events-list. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The amr ical events lists WordPress plugin through 6.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	4.8 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-79
Published	2023-05-02
Last modified	2026-06-17

Publisher (CNA): WPScan · Vendor: amr-ical-events-list project

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

Am I affected?

Timeline

2023-05-02 08:15 UTCPublished CVE record published
2026-06-17 05:26 UTCUpdated Record last modified

amr-ical-events-list project amr-ical-events-list UPGRADE

Affected: <= 6.6

Fixed in: newer than 6.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy amr-ical-events-list || rpm -q amr-ical-events-list || amr-ical-events-list --version

2. UPGRADE to newer than 6.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade amr-ical-events-list

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade amr-ical-events-list

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-2023-1021?

amr-ical-events-list: upgrade to newer than 6.6. Exact commands for each OS are on this page.

Is CVE-2023-1021 being exploited?

CVE-2023-1021 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-2023-1021 affect?

CVE-2023-1021 affects amr-ical-events-list. Severity is medium (CVSS 4.8). The amr ical events lists WordPress plugin through 6.6 does not sanitise and escape some of its settings, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capa

How urgent is CVE-2023-1021?

Priority 31/100. Public exploit reference

Software pages

WordPress vulnerabilities

References

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