CVE-2020-11728 json
An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60.
published 2020-04-15 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-4070
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.6%
- EPSS 1.6% chance of exploitation in 30 days, percentile 75%
- public exploits
- 0
- none known
Summary
An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60. Session management does not use a sufficiently hard-to-guess session key. Anyone who can guess the microsecond time (and the incrementing session_id) can impersonate a session.
Patch / fix
- awl Debian 14, Debian 13, Debian 12 0.61-1
debian advisories DEBIAN-CVE-2020-11728
- awl Ubuntu 20.04 LTS 0.60-1+deb10u1ubuntu1
ubuntu advisories UBUNTU-CVE-2020-11728
Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0
Exploit prediction
1.59% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
debian.org
/security/2020/dsa-4660
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4539-1/
vendor-advisory
-
gitlab.com
/davical-project/awl/-/issues/19
issue-tracking, third-party-advisory
-
bugs.debian.org
/cgi-bin/bugreport.cgi?bug=956650
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2020/04/msg00011.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2020-11728
- NVD CVE-2020-11728
Fencer Vulns 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.