CVE-2020-18701
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive...
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
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
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
- Record
CVE-2020-18701- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-863
- Updated
- 2026-11-02
CVE ListNo score
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
- Record
CVE-2020-18701- Updated
- 2026-11-02
EUVDEUVD-2021-0112No score
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
- Record
EUVD-2021-0112- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3m58-3m5q-53hq
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive...
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
- Record
GHSA-3m58-3m5q-53hq- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-863
- Updated
- 2026-11-02
OSVPYSEC-2021-341No score
Incorrect Access Control in Lin-CMS-Flask v0.1.1 allows remote attackers to obtain sensitive information and/or gain privileges due to the application not invalidating a user's authentication token upon logout, which allows for replaying packets.
- Record
PYSEC-2021-341- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lin-cmsPyPI | All versions, plus listed versions 0.1.1a10.1.1a20.1.1a30.1.1a40.1.1a5 Show 31 moreShow less0.1.1a60.1.1a70.1.1a80.1.1b10.1.1b20.1.1b30.1.1b40.2.0b10.2.0b20.2.0b30.3.0a100.3.0a20.3.0a30.3.0a40.3.0a50.3.0a60.3.0a70.3.0a80.3.0a90.3.10.4.00.4.20.4.30.4.40.4.50.4.60.4.70.4.80.4.100.4.110.4.9 | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-18701 is a critical vulnerability (CVSS 9.8) in Talelin Lin-cms-flask, published August 16, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.28%, the 83rd percentile. No source names a fixed version.