How severe is CVE-2021-4341?

CVE-2021-4341 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-4341 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-4341?

CVE-2021-4341 affects Stylemixthemes Ulisting. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-4341?

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

When was CVE-2021-4341 published?

CVE-2021-4341 was published on 2023-06-07 and last updated on 2026-06-17.

CVE-2021-4341

CVE-2021-4341 is a critical-severity vulnerability in Stylemixthemes Ulisting with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (63rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Stylemixthemes Ulisting
Published: 2023-06-07
Last modified: 2026-06-17

Description

The uListing plugin for WordPress is vulnerable to authorization bypass via Ajax due to missing capability checks, missing input validation, and a missing security nonce in the stm_update_email_data AJAX action in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to change any WordPress option in the database.

Frequently asked questions

What is CVE-2021-4341?: The uListing plugin for WordPress is vulnerable to authorization bypass via Ajax due to missing capability checks, missing input validation, and a missing security nonce in the stm_update_email_data AJAX action in versions up to, and including, 1.6.6. This makes it possible for unauthenticated attackers to change any WordPress option in the database.
How severe is CVE-2021-4341?: CVE-2021-4341 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-4341 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (63rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-4341?: CVE-2021-4341 affects Stylemixthemes Ulisting. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-4341?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2021-4341 published?: CVE-2021-4341 was published on 2023-06-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:stylemixthemes:ulisting:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Stylemixthemes Ulisting

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CVE-2021-36879 — Critical (CVSS 9.8): Unauthenticated Privilege Escalation vulnerability in WordPress uListing plugin (versions <= 2.0.5). Possible if…

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