CVE catalog
CVE-2020-27739
UBUNTU-
A Weak Session Management vulnerability in Citadel WebCit through 926 allows unauthenticated remote attackers to hijack recently logged-in users' sessions. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.
- Severity
- Unknown
- Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.84% · Oct 27, 2026
Reported versions and fixes
Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Ubuntu20.04 | webcit | 917-dfsg-3 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu20.04 | webcit | 917-dfsg-4 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 904-dfsg-1 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 917-dfsg-1build1 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 917-dfsg-2 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu16.04 | webcit | 9.01-dfsg-1 | Affected | [UBUNTU-CVE-2020-27739] |
Provider details and historical evidence
| Distribution / release | Package | Version | Status | Source |
|---|---|---|---|---|
| Ubuntu16.04 | webcit | 9.01-dfsg-1 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 904-dfsg-1 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 917-dfsg-1build1 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu18.04 | webcit | 917-dfsg-2 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu20.04 | webcit | 917-dfsg-3 | Affected | [UBUNTU-CVE-2020-27739] |
| Ubuntu20.04 | webcit | 917-dfsg-4 | Affected | [UBUNTU-CVE-2020-27739] |
Original provider fields
{
"package_releases": [],
"fixed_versions": [],
"distribution_packages": [
{
"name": "webcit",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "16.04",
"versions": [
"9.01-dfsg-1"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27739",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27739",
"provider_updated_at": "2025-10-24T04:48:51Z"
},
{
"name": "webcit",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "18.04",
"versions": [
"904-dfsg-1",
"917-dfsg-1build1",
"917-dfsg-2"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27739",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27739",
"provider_updated_at": "2025-10-24T04:48:51Z"
},
{
"name": "webcit",
"distro": "ubuntu",
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"release": "20.04",
"versions": [
"917-dfsg-3",
"917-dfsg-4"
],
"ecosystem": "deb",
"provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2020-27739",
"fixed_version": "",
"provider_source": "pypi",
"provider_record_id": "UBUNTU-CVE-2020-27739",
"provider_updated_at": "2025-10-24T04:48:51Z"
}
]
}OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
Observed: