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CVE-2021-34369

34
FAUCET Score

CVE-2021-34369 describes an Insecure Direct Object Reference (IDOR) vulnerability in Accela Civic Platform versions through 20.1, specifically within the portlets/contact/ref/refContactDetail.do component. An authenticated attacker can exploit this by manipulating the contactSeqNumber parameter to access sensitive information belonging to other users. This vulnerability carries a CVSS score of 6.5 (Medium), indicating a low attack complexity and requiring only low privileges for an attacker to achieve high confidentiality impact. While the vendor disputes its applicability due to requiring authentication, the potential for unauthorized data access remains. Currently, there is no evidence of active exploitation in the wild, and it is not listed on CISA's KEV catalog. However, a public exploit (EDB-49991) exists, and despite its presence, there is minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 20.1CPE matchmatch criteria
cpe:2.3:a:accela:civic_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
8.24%
Probability of exploitation in next 30 days
EPSS Percentile
94.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-49991 · Jun 14, 2021
This CVE's current EPSS score of 0.0824 is in the 98th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/163116/Accela-Civic-Platform-21.1-Insecure-Direct-Object-Reference.html
ExploitThird Party AdvisoryVDB Entry
gist.github.com / 0xx7/58943bb6e9ef77a09d3c7eb00dcafdc7
Third Party Advisory