CVE-2020-20699
CVE-2020-20699 is a medium-severity vulnerability in S-cms with a CVSS 3.x base score of 4.8. 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-79.
Key facts
- Severity: Medium (CVSS 3.x base score 4.8)
- CVSS v2: 3.5
- EPSS exploit prediction: 1% (41st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: S-cms
- Published:
- Last modified:
Description
A cross site scripting (XSS) vulnerability in S-CMS PHP v3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the Copyright text box under Basic Settings.
Frequently asked questions
- What is CVE-2020-20699?
- A cross site scripting (XSS) vulnerability in S-CMS PHP v3.0 allows attackers to execute arbitrary web scripts or HTML via a crafted payload entered into the Copyright text box under Basic Settings.
- How severe is CVE-2020-20699?
- CVE-2020-20699 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2020-20699 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-20699?
- CVE-2020-20699 affects S-cms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-20699?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-20699 published?
- CVE-2020-20699 was published on 2021-07-30 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:s-cms:s-cms:3.0:*:*:*:*:*:*:*
More vulnerabilities in S-cms
- CVE-2023-51052 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability via the A_formauth parameter at /admin/ajax.php.
- CVE-2023-51051 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability via the A_textauth parameter at /admin/ajax.php.
- CVE-2023-51050 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability via the A_productauth parameter at /admin/ajax.php.
- CVE-2023-51049 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability via the A_bbsauth parameter at /admin/ajax.php.
- CVE-2023-51048 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability via the A_newsauth parameter at /admin/ajax.php.
- CVE-2022-23336 — Critical (CVSS 9.8): S-CMS v5.0 was discovered to contain a SQL injection vulnerability in member_pay.php via the O_id parameter.
Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities
- CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
- CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
- CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
- CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
- CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
- CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…
Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →