CVE-2020-23370
CVE-2020-23370 is a medium-severity vulnerability in Yzmcms 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: 1% (50th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-79
- Affected product: Yzmcms
- Published:
- Last modified:
Description
In YzmCMS 5.6, stored XSS exists via the common/static/plugin/ueditor/1.4.3.3/php/controller.php action parameter, which allows remote attackers to upload a swf file. The swf file can be injected with arbitrary web script or HTML.
Frequently asked questions
- What is CVE-2020-23370?
- In YzmCMS 5.6, stored XSS exists via the common/static/plugin/ueditor/1.4.3.3/php/controller.php action parameter, which allows remote attackers to upload a swf file. The swf file can be injected with arbitrary web script or HTML.
- How severe is CVE-2020-23370?
- CVE-2020-23370 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-2020-23370 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-23370?
- CVE-2020-23370 affects Yzmcms. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2020-23370?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2020-23370 published?
- CVE-2020-23370 was published on 2021-05-10 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:yzmcms:yzmcms:5.6:*:*:*:*:*:*:*
More vulnerabilities in Yzmcms
- CVE-2018-11554 — Critical (CVSS 9.8): The forgotten-password feature in index.php/member/reset/reset_email.html in YzmCMS v3.2 through v3.7 has a Response…
- CVE-2022-23383 — Critical (CVSS 9.1): YzmCMS v6.3 is affected by broken access control. Without login, unauthorized access to the user's personal home page…
- CVE-2020-23595 — High (CVSS 8.8): Cross Site Request Forgery (CSRF) vulnerability in yzmcms version 5.6, allows remote attackers to escalate privileges…
- CVE-2022-23384 — High (CVSS 8.8): YzmCMS v6.3 is affected by Cross Site Request Forgery (CSRF) in /admin.add
- CVE-2022-23888 — High (CVSS 8.8): YzmCMS v6.3 was discovered to contain a Cross-Site Request Forgey (CSRF) via the component…
- CVE-2020-19951 — High (CVSS 8.8): A cross-site request forgery (CSRF) in /controller/pay.class.php of YzmCMS v5.5 allows attackers to access sensitive…
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 →