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Fencer Intel
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 5y ago modified 4mo 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.

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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, 2026-11-09).

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 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.