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Fencer Vulns
medium 4.8

CVE-2020-18414 json

Stored cross site scripting (XSS) vulnerability in Chaoji CMS v2.18 that allows attackers to execute arbitrary code via /index.php?admin-ma…

published 2023-06-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2020-10338

cvss
4.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Stored cross site scripting (XSS) vulnerability in Chaoji CMS v2.18 that allows attackers to execute arbitrary code via /index.php?admin-master-webset.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
23 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/GodEpic/chaojicms/issues/3 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

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.