CVE-2020-11728
CVE-2020-11728 is a high-severity vulnerability in Davical Andrew's Web Libraries with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-384.
Key facts
- Severity: High (CVSS 3.x base score 7.5)
- CVSS v2: 5.0
- EPSS exploit prediction: 2% (75th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-384
- Affected product: Davical Andrew's Web Libraries
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is CVE-2020-11728?
- 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.
- How severe is CVE-2020-11728?
- CVE-2020-11728 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
- Is CVE-2020-11728 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2020-11728?
- CVE-2020-11728 primarily affects Davical Andrew's Web Libraries. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2020-11728?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2020-11728 published?
- CVE-2020-11728 was published on 2020-04-15 and last updated on 2026-06-17.
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=956650
- https://gitlab.com/davical-project/awl/-/issues/19
- https://lists.debian.org/debian-lts-announce/2020/04/msg00011.html
- https://usn.ubuntu.com/4539-1/
- https://www.debian.org/security/2020/dsa-4660
Affected products (4)
- cpe:2.3:a:davical:andrew\'s_web_libraries:*:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
More vulnerabilities in Davical Andrew's Web Libraries
- CVE-2020-11729 — Critical (CVSS 9.8): An issue was discovered in DAViCal Andrew's Web Libraries (AWL) through 0.60. Long-term session cookies, uses to…
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