HOMEVULNERABILITIESCVE-2020-27742
MEDIUM

CVE-2020-27742

CWE-639Published: October 28, 2020· Updated: Jun 17, 2026

6.5
CVSS v3.1

Official Description

An Insecure Direct Object Reference vulnerability in Citadel WebCit through 926 allows authenticated remote attackers to read someone else's emails via the msg_confirm_move template. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

NVD Source

Technical Analysis

CVE-2020-27742 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

citadel1 product(s)
webcit
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://uncensored.citadel.org/readfwd?go=Citadel%20Security?start_reading_at=4592834
ADVISORYhttps://www.citadel.org/
ADVISORYhttp://uncensored.citadel.org/readfwd?go=Citadel%20Security?start_reading_at=4592834
ADVISORYhttps://www.citadel.org/

All References (4)

→
http://uncensored.citadel.org/readfwd?go=Citadel%20Security?start_reading_at=4592834Exploit · Vendor Advisory
→
https://www.citadel.org/Vendor Advisory
→
http://uncensored.citadel.org/readfwd?go=Citadel%20Security?start_reading_at=4592834Exploit · Vendor Advisory
→
https://www.citadel.org/Vendor Advisory

Quick Facts

CVE IDCVE-2020-27742
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-639
CISA KEVNo
Affected1 vendor(s)
PublishedOct 28, 2020

Related CVEs (CWE-639)

CVE-2024-45032
10.0
CVE-2026-29200
9.9
CVE-2026-55255
KEV9.9
CVE-2026-54052
9.9
CVE-2026-52782
9.9
CVE-2025-0987
9.9

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-27742 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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