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Fencer Vulns
medium 6.5

CVE-2021-34369 json

portlets/contact/ref/refContactDetail.do in Accela Civic Platform through 20.1 allows remote attackers to obtain sensitive information via…

published 2021-06-09 5 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21028

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
8.2%
EPSS 8.2% chance of exploitation in 30 days, percentile 94%
public exploits
1
Exploit-DB

Summary

portlets/contact/ref/refContactDetail.do in Accela Civic Platform through 20.1 allows remote attackers to obtain sensitive information via a modified contactSeqNumber value. NOTE: the vendor states "the information that is being queried is authorized for an authenticated user of that application, so we consider this not applicable.

Timeline

  1. Published
  2. First public exploit (EDB-49991)

Exploit prediction

8.24% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-49991 Accela Civic Platform 21.1 - 'contactSeqNumber' Insecure Direct Object References (IDOR) webapps, 2021-06-14
  • packetstormsecurity.com http://packetstormsecurity.com/files/163116/Accela-Civic-Platform-21.1-Insecure-Direct-Object-Reference.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:P/I:N/A:N

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.