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Fencer Intel
high 7.5

CVE-2018-20463 in the critical feed 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-2018-13018

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
13.2%
EPSS 13.2% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known, plus a Nuclei check

Summary

An issue was discovered in the JSmol2WP plugin 1.07 for WordPress. There is an arbitrary file read vulnerability via ../ directory traversal in query=php://filter/resource= in the jsmol.php query string. This can also be used for SSRF.

Exploit prediction

13.19% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • Nuclei template WordPress JSmol2WP <=1.07 - Local File Inclusion nuclei detection template
  • cbiu.cc https://www.cbiu.cc/2018/12/WordPress%E6%8F%92%E4%BB%B6jsmol2wp%E6%BC%8F%E6%B4%9E/#%E4%BB%BB%E6%84%8F%E6%96%87%E4%BB%B6%E8%AF%BB%E5%8F%96-amp-SSRF referenced PoC, tagged "exploit" by a source, unverified
  • wpvulndb.com https://wpvulndb.com/vulnerabilities/9197 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
Technology feeds

References

Sources

Fencer Intel 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.