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CVE-2020-27740

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users...

5.3 Medium

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
None
Availability
None

Exploit likelihood

1.29%Up 0.5 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.3

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Record
CVE-2020-27740
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS 2.0
5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Updated
2026-11-02
CVE List No score

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Record
CVE-2020-27740
Updated
2026-11-02
EUVDEUVD-2020-20244 No score

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Record
EUVD-2020-20244
Updated
2026-11-03
GitHub AdvisoriesGHSA-8mh6-v49g-9mfp No score

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users...

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Record
GHSA-8mh6-v49g-9mfp
Updated
2026-11-02
OSVUBUNTU-CVE-2020-27740 5.3

Citadel WebCit through 926 allows unauthenticated remote attackers to enumerate valid users within the platform. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

Record
UBUNTU-CVE-2020-27740
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
webcit
Ubuntu:16.04:LTS
All versions, plus listed versions
9.01-dfsg-1
None known
webcit
Ubuntu:18.04:LTS
All versions, plus listed versions
904-dfsg-1917-dfsg-1build1917-dfsg-2
None known
webcit
Ubuntu:20.04:LTS
All versions, plus listed versions
917-dfsg-3917-dfsg-4
None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-27740 is a medium vulnerability (CVSS 5.3) in Citadel Webcit, published October 28, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.29%, the 70th percentile. No source names a fixed version.

References

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