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Fencer Vulns
medium 6.1

CVE-2024-40347 json

A reflected cross-site scripting (XSS) vulnerability in Hyland Alfresco Platform 23.2.1-r96 allows attackers to execute arbitrary code in t…

published 2024-07-20 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-38434

cvss
6.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 34%
public exploits
0
none known

Summary

A reflected cross-site scripting (XSS) vulnerability in Hyland Alfresco Platform 23.2.1-r96 allows attackers to execute arbitrary code in the context of a user's browser via injecting a crafted payload into the parameter htmlid.

Patch / fix

  • hyland alfresco_content_services 23.3

CISA SSVC

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

Exploit prediction

0.40% chance of exploitation in the next 30 days, higher than 34% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/4rdr/proofs/blob/main/info/Alfresco_Reflected_XSS_via_htmlid_parameter.md referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CNA 3.1 6.1 CVSS:3.1/AV:N/AC:L/PR:N/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.