Skip to content
Fencer Vulns
medium 5.4

CVE-2018-20758 json

MODX vulnerability allows for XSS via user settings parameters

published 2019-02-06 7 y ago modified 2026-06-17 4 mo ago also GHSA-vwqw-wfhv-2xcq , EUVD-2018-13301

cvss
5.4
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 49%
public exploits
0
none known

Summary

MODX Revolution through v2.7.0-pl allows XSS via User Settings such as Description.

Patch / fix

  • packagist modx/revolution 2.7.1-pl

Exploit prediction

0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/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
GitHub 3.1 5.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected packages

ecosystem package affected fixed in
packagist modx/revolution
<2.7.1-pl
2.7.1-pl

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.