CVE-2025-8891: The OceanWP theme for WordPress is vulnerable to Cross-Site Request Forgery in versions 4.0.9 to 4.1.1

Routine

MEDIUM 4.3UPGRADE

CVE-2025-8891 is a medium-severity flaw (CVSS 4.3) affecting oceanwp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The OceanWP theme for WordPress is vulnerable to Cross-Site Request Forgery in versions 4.0.9 to 4.1.1. This is due to missing or incorrect nonce validation on the oceanwp_notice_button_click() function. This makes it possible for unauthenticated attackers to install the Ocean Extra plugin via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Why this priority

Public exploit reference

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 88%)
CISA exploited list	No
Weakness	CWE-352
Published	2025-08-13
Last modified	2026-06-17

Publisher (CNA): Wordfence · Vendor: oceanwp

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

Am I affected?

Timeline

2025-08-13 04:16 UTCPublished CVE record published
2026-06-17 10:07 UTCUpdated Record last modified

oceanwp oceanwp UPGRADE

Affected: >= 4.0.9 and <= 4.1.1

Fixed in: newer than 4.1.1

Safe to downgrade to: a release before 4.0.9

1. Check installed version

apt-cache policy oceanwp || rpm -q oceanwp || oceanwp --version

2. UPGRADE to newer than 4.1.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade oceanwp

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade oceanwp

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.0.9 (Debian / Ubuntu)

apt-cache madison oceanwp sudo apt install oceanwp=<VERSION_BEFORE_4.0.9> sudo apt-mark hold oceanwp

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list oceanwp sudo dnf downgrade oceanwp-<VERSION_BEFORE_4.0.9> sudo dnf versionlock add oceanwp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-8891?

oceanwp: upgrade to newer than 4.1.1. Exact commands for each OS are on this page.

Is CVE-2025-8891 being exploited?

CVE-2025-8891 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-2025-8891 affect?

CVE-2025-8891 affects oceanwp. Severity is medium (CVSS 4.3). The OceanWP theme for WordPress is vulnerable to Cross-Site Request Forgery in versions 4.0.9 to 4.1.1. This is due to missing or incorrect nonce validation on the oceanwp_notice_button_click() function. This makes it possible for unauthent

How urgent is CVE-2025-8891?

Priority 23/100. Public exploit reference

Software pages

WordPress vulnerabilities

Related CVEs

CVE-2025-8944 MEDIUM 4.3 UPGRADE The OceanWP WordPress theme before 4.1.2 is vulnerable to an option update due to a missing capability check o

References

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