Skip to content
Fencer Vulns
medium 4.8

CVE-2020-29247 json

WonderCMS 3.1.3 is affected by cross-site scripting (XSS) in the Admin Panel.

published 2020-12-24 5 y ago modified 2026-07-09 4 mo ago also EUVD-2020-21622

cvss
4.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

WonderCMS 3.1.3 is affected by cross-site scripting (XSS) in the Admin Panel. An attacker can inject the XSS payload in Page keywords and each time any user will visit the website, the XSS triggers, and the attacker can able to steal the cookie according to the crafted payload.

Exploit prediction

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • exploit-db.com https://www.exploit-db.com/exploits/49102 referenced PoC, tagged "exploit" by a source, unverified
  • systemweakness.com https://systemweakness.com/cve-2020-29247-wondercms-3-1-3-page-persistent-cross-site-scripting-3dd2bb210beb referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 4.8 CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
NVD 2.0 3.5 AV:N/AC:M/Au:S/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

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.