CVE-2023-23711: Cross-Site Request Forgery (CSRF) vulnerability in A2 Hosting A2 Optimized WP plugin <= 3.0.4 versions.

Q: How do I fix CVE-2023-23711?

a2 optimized: upgrade to 3.0.5. Exact commands for each OS are on this page.

Q: Is CVE-2023-23711 being exploited?

CVE-2023-23711 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-2023-23711 affect?

CVE-2023-23711 affects a2 optimized. Severity is medium (CVSS 4.3). Cross-Site Request Forgery (CSRF) vulnerability in A2 Hosting A2 Optimized WP plugin <= 3.0.4 versions.

Q: How urgent is CVE-2023-23711?

Priority 19/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2023-23711 is a medium-severity flaw (CVSS 4.3) affecting a2 optimized. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-Site Request Forgery (CSRF) vulnerability in A2 Hosting A2 Optimized WP plugin <= 3.0.4 versions.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-352
Published	2023-03-13
Last modified	2026-06-17

Publisher (CNA): Patchstack · Vendor: a2hosting

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

Am I affected?

Timeline

2023-03-13 15:15 UTCPublished CVE record published
2026-06-17 05:37 UTCUpdated Record last modified

a2hosting a2 optimized UPGRADE

Affected: < 3.0.5

Fixed in: 3.0.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy a2-optimized || rpm -q a2-optimized || a2-optimized --version

2. UPGRADE to 3.0.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade a2-optimized

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade a2-optimized

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-2023-23711?

a2 optimized: upgrade to 3.0.5. Exact commands for each OS are on this page.

Is CVE-2023-23711 being exploited?

CVE-2023-23711 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-2023-23711 affect?

CVE-2023-23711 affects a2 optimized. Severity is medium (CVSS 4.3). Cross-Site Request Forgery (CSRF) vulnerability in A2 Hosting A2 Optimized WP plugin <= 3.0.4 versions.

How urgent is CVE-2023-23711?

Priority 19/100. No elevated risk signals yet.

References

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