How severe is CVE-2024-33423?

CVE-2024-33423 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2024-33423 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-33423?

CVE-2024-33423 affects Cmsimple. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-33423?

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.

Does CVE-2024-33423 have an EU (EUVD) identifier?

Yes. CVE-2024-33423 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31162.

When was CVE-2024-33423 published?

CVE-2024-33423 was published on 2024-05-01 and last updated on 2026-06-17.

CVE-2024-33423

CVE-2024-33423 is a high-severity vulnerability in Cmsimple with a CVSS 3.x base score of 7.4. 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-80.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-31162
Weakness: CWE-80
Affected product: Cmsimple
Published: 2024-05-01
Last modified: 2026-06-17

Description

Cross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Logout parameter under the Language section.

Frequently asked questions

What is CVE-2024-33423?: Cross-Site Scripting (XSS) vulnerability in the Settings menu of CMSimple v5.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into the Logout parameter under the Language section.
How severe is CVE-2024-33423?: CVE-2024-33423 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2024-33423 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-33423?: CVE-2024-33423 affects Cmsimple. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-33423?: 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.
Does CVE-2024-33423 have an EU (EUVD) identifier?: Yes. CVE-2024-33423 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-31162.
When was CVE-2024-33423 published?: CVE-2024-33423 was published on 2024-05-01 and last updated on 2026-06-17.

References

https://github.com/adiapera/xss_language_cmsimple_5.15

Affected products (1)

cpe:2.3:a:cmsimple:cmsimple:5.15:*:*:*:*:*:*:*

More vulnerabilities in Cmsimple

CVE-2021-43741 — Critical (CVSS 9.8): CMSimple 5.4 is vulnerable to Directory Traversal. The vulnerability exists when a user changes the file name to…
CVE-2024-57548 — Critical (CVSS 9.1): CMSimple 5.16 allows the user to edit log.php file via print page.
CVE-2021-47735 — High (CVSS 8.8): CMSimple 5.4 contains an authenticated remote code execution vulnerability that allows logged-in attackers to inject…
CVE-2024-58280 — High (CVSS 8.8): CMSimple 5.15 contains a remote command execution vulnerability that allows authenticated attackers to modify file…
CVE-2021-47734 — High (CVSS 7.8): CMSimple 5.4 contains an authenticated local file inclusion vulnerability that allows remote attackers to manipulate…
CVE-2024-57549 — High (CVSS 7.5): CMSimple 5.16 allows the user to read cms source code through manipulation of the file name in the file parameter of a…

All CVEs affecting Cmsimple →

Other CWE-80 vulnerabilities

CVE-2024-39363 — Critical (CVSS 9.6): A cross-site scripting (xss) vulnerability exists in the login.cgi set_lang_CountryCode() functionality of Wavlink…
CVE-2023-39216 — Critical (CVSS 9.6): Improper input validation in Zoom Desktop Client for Windows before 5.14.7 may allow an unauthenticated user to enable…
CVE-2025-53883 — Critical (CVSS 9.3): A Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability allows attackers to run…
CVE-2026-32891 — Critical (CVSS 9.0): Anchorr is a Discord bot for requesting movies and TV shows and receiving notifications when items are added to a media…
CVE-2026-57532 — High (CVSS 8.8): Malicious HTML content contained in the layout specification of a PDF ticket or badge layout was executed when the PDF…
CVE-2026-6002 — High (CVSS 8.8): Improper neutralization of Script-Related HTML tags in a web page (basic XSS) vulnerability in DivvyDrive Information…

Browse all CWE-80 vulnerabilities →