CVE-2023-5239
CVE-2023-5239 is a high-severity vulnerability in Cleantalk Security & Malware Scan with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- EPSS exploit prediction: 1% (47th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Cleantalk Security & Malware Scan
- Published:
- Last modified:
Description
The Security & Malware scan by CleanTalk WordPress plugin before 2.121 retrieves client IP addresses from potentially untrusted headers, allowing an attacker to manipulate its value. This may be used to bypass bruteforce protection.
Frequently asked questions
- What is CVE-2023-5239?
- The Security & Malware scan by CleanTalk WordPress plugin before 2.121 retrieves client IP addresses from potentially untrusted headers, allowing an attacker to manipulate its value. This may be used to bypass bruteforce protection.
- How severe is CVE-2023-5239?
- CVE-2023-5239 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2023-5239 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-5239?
- CVE-2023-5239 affects Cleantalk Security & Malware Scan. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-5239?
- 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-2023-5239 published?
- CVE-2023-5239 was published on 2023-11-27 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:cleantalk:security_\&_malware_scan:*:*:*:*:*:wordpress:*:*
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