CVE-2023-23645: Improper Control of Generation of Code ('Code Injection') vulnerability in MainWP MainWP Code Snippets Extensi

Q: How do I fix CVE-2023-23645?

code snippets extension: upgrade to 4.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2023-23645 being exploited?

CVE-2023-23645 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-2023-23645 affect?

CVE-2023-23645 affects code snippets extension. Severity is critical (CVSS 9.9). Improper Control of Generation of Code ('Code Injection') vulnerability in MainWP MainWP Code Snippets Extension allows Code Injection.This issue affects MainWP Code Snippets Extension: from n/a through 4.0.2.

Q: How urgent is CVE-2023-23645?

Priority 50/100. Critical severity

This month

CRITICAL 9.9UPGRADE

CVE-2023-23645 is a critical-severity flaw (CVSS 9.9) affecting code snippets extension. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Control of Generation of Code ('Code Injection') vulnerability in MainWP MainWP Code Snippets Extension allows Code Injection.This issue affects MainWP Code Snippets Extension: from n/a through 4.0.2.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.9 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-94
Published	2024-05-17
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: mainwp

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

Am I affected?

Timeline

2024-05-17 07:15 UTCPublished CVE record published
2026-06-17 05:37 UTCUpdated Record last modified

mainwp code snippets extension UPGRADE

Affected: < 4.0.3

Fixed in: 4.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy code-snippets-extension || rpm -q code-snippets-extension || code-snippets-extension --version

2. UPGRADE to 4.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade code-snippets-extension

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade code-snippets-extension

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-2023-23645?

code snippets extension: upgrade to 4.0.3. Exact commands for each OS are on this page.

Is CVE-2023-23645 being exploited?

CVE-2023-23645 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-2023-23645 affect?

CVE-2023-23645 affects code snippets extension. Severity is critical (CVSS 9.9). Improper Control of Generation of Code ('Code Injection') vulnerability in MainWP MainWP Code Snippets Extension allows Code Injection.This issue affects MainWP Code Snippets Extension: from n/a through 4.0.2.

How urgent is CVE-2023-23645?

Priority 50/100. Critical severity

References

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