CVE-2020-23426
CVE-2020-23426 is a critical-severity vulnerability in Zzcms 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-352.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- CVSS v2: 7.5
- EPSS exploit prediction: 4% (88th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-352
- Affected product: Zzcms
- Published:
- Last modified:
Description
zzcms 201910 contains an access control vulnerability through escalation of privileges in /user/adv.php, which allows an attacker to modify data for further attacks such as CSRF.
Frequently asked questions
- What is CVE-2020-23426?
- zzcms 201910 contains an access control vulnerability through escalation of privileges in /user/adv.php, which allows an attacker to modify data for further attacks such as CSRF.
- How severe is CVE-2020-23426?
- CVE-2020-23426 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-2020-23426 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-23426?
- CVE-2020-23426 affects Zzcms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-23426?
- 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-2020-23426 published?
- CVE-2020-23426 was published on 2021-04-08 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:zzcms:zzcms:201910:*:*:*:*:*:*:*
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