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CVE-2021-43091

25
FAUCET Score

CVE-2021-43091 describes an SQL Injection vulnerability in Yeswiki doryphore version 20211012, specifically within the email parameter of its registration form. This vulnerability carries a high severity CVSS score of 7.5, indicating it can be exploited remotely without user interaction to achieve high confidentiality impact. While no public exploit code or active exploitation has been observed, and community discussion is minimal, organizations using the affected Yeswiki version should prioritize patching to mitigate potential data breaches.

Impacted Technologies

VendorProductVersion(s)CPE
4.1.0CPE matchmatch criteria
cpe:2.3:a:yeswiki:yeswiki:4.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.39%
Probability of exploitation in next 30 days
EPSS Percentile
69.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0139 is in the 50th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: yeswiki/yeswikiFixed in: 4.1.0
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-xgx2-332h-9x6qhigh

SQL Injection in Yeswiki

Mar 26, 2022

References

github.com / yeswiki/yeswiki/commit/c9785f9a92744c3475f9676a0d8f95de24750094
PatchThird Party Advisory
huntr.dev / bounties/07f245a7-ee9f-4b55-a0cc-13d5cb1be6e0
ExploitPatchThird Party Advisory