How severe is CVE-2023-5311?

CVE-2023-5311 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-5311 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5311?

CVE-2023-5311 affects Wpvnteam Wp Extra. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5311?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2023-5311 published?

CVE-2023-5311 was published on 2023-10-25 and last updated on 2026-06-17.

CVE-2023-5311

CVE-2023-5311 is a high-severity vulnerability in Wpvnteam Wp Extra with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Wpvnteam Wp Extra
Published: 2023-10-25
Last modified: 2026-06-17

Description

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.

Frequently asked questions

What is CVE-2023-5311?: The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.
How severe is CVE-2023-5311?: CVE-2023-5311 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-5311 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5311?: CVE-2023-5311 affects Wpvnteam Wp Extra. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5311?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2023-5311 published?: CVE-2023-5311 was published on 2023-10-25 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:wpvnteam:wp_extra:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Wpvnteam Wp Extra

CVE-2023-46623 — Critical (CVSS 9.9): Improper Control of Generation of Code ('Code Injection') vulnerability in TienCOP WP EXtra.This issue affects WP…
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