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Fencer Vulns
medium 6.1

CVE-2018-20462 json

An issue was discovered in the JSmol2WP plugin 1.07 for WordPress.

published 2018-12-25 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-13017

cvss
6.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known, plus a Nuclei check

Summary

An issue was discovered in the JSmol2WP plugin 1.07 for WordPress. A cross-site scripting (XSS) vulnerability allows remote attackers to inject arbitrary web script or HTML via the jsmol.php data parameter.

Exploit prediction

3.97% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Nuclei template WordPress JSmol2WP <=1.07 - Cross-Site Scripting nuclei detection template
  • wpvulndb.com https://wpvulndb.com/vulnerabilities/9196 referenced PoC, tagged "exploit" by a source, unverified
  • cbiu.cc https://www.cbiu.cc/2018/12/WordPress%E6%8F%92%E4%BB%B6jsmol2wp%E6%BC%8F%E6%B4%9E/#%E5%8F%8D%E5%B0%84%E6%80%A7XSS referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.1 CVSS:3.0/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
Technology feeds

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.