CVE-2020-21362
CVE-2020-21362 is a medium-severity vulnerability in Maccms 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-79.
Key facts
- Severity: Medium (CVSS 3.x base score 5.4)
- CVSS v2: 3.5
- EPSS exploit prediction: 0% (38th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Maccms
- Published:
- Last modified:
Description
A cross site scripting (XSS) vulnerability in the background search function of Maccms10 allows attackers to execute arbitrary web scripts or HTML via the 'wd' parameter.
Frequently asked questions
- What is CVE-2020-21362?
- A cross site scripting (XSS) vulnerability in the background search function of Maccms10 allows attackers to execute arbitrary web scripts or HTML via the 'wd' parameter.
- How severe is CVE-2020-21362?
- CVE-2020-21362 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 user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-21362 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (38th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-21362?
- CVE-2020-21362 affects Maccms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-21362?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-21362 published?
- CVE-2020-21362 was published on 2021-08-11 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:maccms:maccms:10.0:*:*:*:*:*:*:*
More vulnerabilities in Maccms
- CVE-2021-45786 — Critical (CVSS 9.8): In maccms v10, an attacker can log in through /index.php/user/login in the "col" and "openid" parameters to gain…
- CVE-2020-21359 — Critical (CVSS 9.8): An arbitrary file upload vulnerability in the Template Upload function of Maccms10 allows attackers bypass the suffix…
- CVE-2017-17733 — Critical (CVSS 9.8): Maccms 8.x allows remote command execution via the wd parameter in an index.php?m=vod-search request.
- CVE-2025-28091 — Critical (CVSS 9.1): maccms10 v2025.1000.4047 has a Server-Side Request Forgery (SSRF) vulnerability via Add Article.
- CVE-2025-28090 — Critical (CVSS 9.1): maccms10 v2025.1000.4047 is vulnerable to Server-Side Request Forgery (SSRF) in the Collection Custom Interface feature.
- CVE-2025-28089 — Critical (CVSS 9.1): maccms10 v2025.1000.4047 is vulnerable to Server-Side Request Forgery (SSRF) via the Scheduled Task function.
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