How severe is CVE-2023-5509?

CVE-2023-5509 has a CVSS 3.x base score of 5.4, 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 low.

Is CVE-2023-5509 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-5509?

CVE-2023-5509 affects Premio Mystickymenu. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-5509?

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

When was CVE-2023-5509 published?

CVE-2023-5509 was published on 2023-11-20 and last updated on 2026-06-17.

CVE-2023-5509

CVE-2023-5509 is a medium-severity vulnerability in Premio Mystickymenu with a CVSS 3.x base score of 5.4. 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-863.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 1% (40th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Premio Mystickymenu
Published: 2023-11-20
Last modified: 2026-06-17

Description

The myStickymenu WordPress plugin before 2.6.5 does not adequately authorize some ajax calls, allowing any logged-in user to perform the actions.

Frequently asked questions

What is CVE-2023-5509?: The myStickymenu WordPress plugin before 2.6.5 does not adequately authorize some ajax calls, allowing any logged-in user to perform the actions.
How severe is CVE-2023-5509?: CVE-2023-5509 has a CVSS 3.x base score of 5.4, 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 low.
Is CVE-2023-5509 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (40th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5509?: CVE-2023-5509 affects Premio Mystickymenu. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5509?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5509 published?: CVE-2023-5509 was published on 2023-11-20 and last updated on 2026-06-17.

References

https://wpscan.com/vulnerability/3b33c262-e7f0-4310-b26d-4727d7c25c9d

Affected products (1)

cpe:2.3:a:premio:mystickymenu:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Premio Mystickymenu

CVE-2021-24425 — Medium (CVSS 4.8): The Floating Notification Bar, Sticky Menu on Scroll, and Sticky Header for Any Theme – myStickymenu WordPress plugin…

All CVEs affecting Premio Mystickymenu →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…
CVE-2026-44330 — Critical (CVSS 10.0): free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's NEF mounts the…
CVE-2026-46595 — Critical (CVSS 10.0): Previously, CVE-2024-45337 fixed an authorization bypass for misused ssh server configurations; if any other type of…
CVE-2026-33105 — Critical (CVSS 10.0): Improper authorization in Microsoft Azure Kubernetes Service allows an unauthorized attacker to elevate privileges over…
CVE-2026-32213 — Critical (CVSS 10.0): Improper authorization in Azure AI Foundry allows an unauthorized attacker to elevate privileges over a network.

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →