CVE-2021-3680
Missing Cryptographic Step in star7th/showdoc
CVE-2021-3680 is a medium vulnerability (CVSS 5.3) in Showdoc, published August 4, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. No source names a fixed version.
- Severity
- 5.3 MediumCVSS 3.0, CVE List
- Exploit chance
- 0.46%EPSS, 40th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
showdoc is vulnerable to Missing Cryptographic Step
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
showdoc/showdocPackagist | through 2.9.8 | None known |
showdoc/showdocPackagist | through 2.9.8, plus listed versions v1.0.0v1.0.1v1.0.2v1.0.3v1.0.4 Show 45 moreShow lessv1.0.5v1.1.0v1.1.1v1.1.3v1.1.4v1.1.5v1.2.0v1.2.1v1.2.2v1.2.3v1.2.4v1.2.5v1.2.6v1.3.0v1.3.1v1.3.3v1.3.4v1.3.5v1.3.6v1.3.7v1.3.8v1.4.0v1.4.1v1.4.2v1.4.3v1.4.4v1.4.5v1.4.6v1.4.7v1.5.0v1.5.1v1.5.2v1.5.3v1.6.0v1.6.1v1.6.2v1.7.0v1.7.1v1.7.2v1.8.0v1.8.1v1.8.2v1.8.3v1.8.4v1.8.5 | None known |
What each source reports
CVE List Score used
Missing Cryptographic Step in star7th/showdoc
showdoc is vulnerable to Missing Cryptographic Step
- Record
CVE-2021-3680- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N - Weakness
- CWE-325
- Updated
- 2026-11-02
EUVDEUVD-2021-2019
showdoc is vulnerable to Missing Cryptographic Step
- Record
EUVD-2021-2019- CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-8vh3-29mr-m9xg
Inadequate Encryption Strength in showdoc
showdoc makes use of a hardcoded salt in its user password hash function
- Record
GHSA-8vh3-29mr-m9xg- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-326, CWE-347
- Updated
- 2026-11-02
NVD
showdoc is vulnerable to Missing Cryptographic Step
- Record
CVE-2021-3680- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - CVSS 3.0
- 5.3 Medium
CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - Weakness
- CWE-325, CWE-347
- Updated
- 2026-11-02
OSV
showdoc is vulnerable to Missing Cryptographic Step
- Record
CVE-2021-3680- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVGHSA-8vh3-29mr-m9xg
Inadequate Encryption Strength in showdoc
showdoc makes use of a hardcoded salt in its user password hash function
- Record
GHSA-8vh3-29mr-m9xg- CVSS 3.1
- 4.9 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-326, CWE-347
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/star7th/showdoc/commit/4b962c1740311e0d46775023b6acba39ad60e370
huntr.dev/bounties/76b49607-fba9-4100-9be7-cb459fe6cfe2
nvd.nist.gov/vuln/detail/CVE-2021-3680
Left out here: 76 versions. The JSON record has them.