Yonyou u8 v13.0 was discovered to contain a DOM-based cross-site scripting (XSS) vulnerability via the component /u8sl/WebHelp.

published 2022-03-25 4 y ago modified 2026-07-09 4 mo ago also EUVD-2022-30825

cvss: 6.1; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 41.7%; EPSS 41.7% chance of exploitation in 30 days, percentile 98%
public exploits: 0; none known, plus a Nuclei check

Exploit prediction

41.72% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

Nuclei template Yonyou U8 13.0 - Cross-Site Scripting nuclei detection template
github.com https://github.com/k0xx11/Vulscve/blob/master/yonyouu8-xss.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	6.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD	2.0	4.3	AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness

CWE-79 Improper Neutralization of Input During Web Page Generation

References

github.com /k0xx11/Vulscve/blob/master/yonyouu8-xss.md
exploit, third-party-advisory
yonyou.com /
product, vendor-advisory

Sources

CVE List CVE-2022-26263
NVD CVE-2022-26263

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary