How severe is CVE-2023-1027?

CVE-2023-1027 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2023-1027 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-1027?

CVE-2023-1027 affects Joomunited Wp Meta Seo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-1027?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-1027 published?

CVE-2023-1027 was published on 2023-02-28 and last updated on 2026-06-17.

CVE-2023-1027

CVE-2023-1027 is a medium-severity vulnerability in Joomunited Wp Meta Seo with a CVSS 3.x base score of 4.3. 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: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (38th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Joomunited Wp Meta Seo
Published: 2023-02-28
Last modified: 2026-06-17

Description

The WP Meta SEO plugin for WordPress is vulnerable to unauthorized sitemap generation due to a missing capability check on the checkAllCategoryInSitemap function in versions up to, and including, 4.5.3. This makes it possible for authenticated attackers with subscriber-level access to obtain post categories. This vulnerability occurred as a result of the plugin relying on nonce checks as a means of access control, and that nonce being accessible to all authenticated users regardless of role.

Frequently asked questions

What is CVE-2023-1027?: The WP Meta SEO plugin for WordPress is vulnerable to unauthorized sitemap generation due to a missing capability check on the checkAllCategoryInSitemap function in versions up to, and including, 4.5.3. This makes it possible for authenticated attackers with subscriber-level access to obtain post categories. This vulnerability occurred as a result of the plugin relying on nonce checks as a means of access control, and that nonce being accessible to all authenticated users regardless of role.
How severe is CVE-2023-1027?: CVE-2023-1027 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2023-1027 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-1027?: CVE-2023-1027 affects Joomunited Wp Meta Seo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-1027?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-1027 published?: CVE-2023-1027 was published on 2023-02-28 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:joomunited:wp_meta_seo:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Joomunited Wp Meta Seo

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CVE-2023-6961 — High (CVSS 7.2): The WP Meta SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Referer’ header in all…
CVE-2024-45456 — Medium (CVSS 6.5): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JoomUnited WP…
CVE-2023-0876 — Medium (CVSS 6.1): The WP Meta SEO WordPress plugin before 4.5.3 does not authorize several ajax actions, allowing low-privilege users to…
CVE-2024-45455 — Medium (CVSS 5.9): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in JoomUnited WP…

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Other CWE-862 (Missing Authorization) vulnerabilities

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