CVE-2022-26263U8\+ XSS
Yonyou u8 v13.0 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability via the component /u8sl/WebHelp.
Published Mar 25, 2022 · Updated Jul 9, 2026
Key Facts
Routine patching- CVE-2022-26263 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting U8\+ (Yonyou).
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 42% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Scores
CVSS v3.1
6.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS (30-day exploit likelihood)
42%
Higher than 98.6% of all scored CVEs
Exploit maturity
Proof of concept
ATLAS score
36/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Proof of concept
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
- advisoryhttps://www.yonyou.com/
- advisoryhttp://yonyou.com
Description
Yonyou u8 v13.0 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability via the component /u8sl/WebHelp.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| U8\+Yonyou | 13.0 | n/a |
Timeline
Publicly disclosed
Mar 25, 2022
Last updated
Jul 9, 2026
Weakness Type
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References
- advisoryyonyou.com
- advisoryyonyou.com
- exploitgithub.com · yonyouu8-xss.md
FAQ
Common Questions.
Yonyou u8 v13.0 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability via the component /u8sl/WebHelp.
Affected: U8\+ (Yonyou) versions 13.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: routine patching, as no exploitation is known and its severity is moderate or low.
Is CVE-2022-26263 On Your Attack Surface?
Brandefense matches it against the products discovered on your perimeter and opens a finding the day a CVE like this is listed.
Request A Demo