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Fencer Intel
medium 5.4

CVE-2018-8957 json

CoverCMS v1.1.6 has XSS via the fourth input box to index.php, related to admina/mconfigs.inc.php.

published 2018-03-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-20564

cvss
5.4
version 3.0, 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

CoverCMS v1.1.6 has XSS via the fourth input box to index.php, related to admina/mconfigs.inc.php.

Exploit prediction

0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/ttylx/Cve_reveal/blob/master/CoverCMS_01/re.md referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/ttylx/Cve_reveal/blob/master/CoverCMS_01/Covercms_1.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.4 CVSS:3.0/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

Classification

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

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.