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Fencer Intel
medium 5.4

CVE-2022-4655 json

Welcart e-Commerce < 2.8.9 - Contributor+ Stored XSS via Shortcode

published 3y ago modified 4mo ago also EUVD-2022-51979

cvss
5.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 41%
public exploits
0
none known

Summary

The Welcart e-Commerce WordPress plugin before 2.8.9 does not validate and escapes one of its shortcode attributes, which could allow users with a role as low as a contributor to perform a Stored Cross-Site Scripting attack.

Patch / fix

  • Unknown Welcart e-Commerce 2.8.9

Is CVE-2022-4655 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
last yr.

Exploit prediction

0.48% chance of exploitation in the next 30 days, higher than 41% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • wpscan.com https://wpscan.com/vulnerability/a1c70c80-e952-4cc7-aca0-c2dde3fa08a9 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

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

Affected products

  • Unknown Welcart e-Commerce

Classification

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.