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CVE-2021-41974

30
FAUCET Score

CVE-2021-41974 is a critical vulnerability affecting Tad Book3, where the editing book page lacks identity verification. This flaw allows unauthenticated remote attackers to view and modify arbitrary book content without authorization. With a CVSS score of 9.1 (CRITICAL), the vulnerability is easily exploitable over the network with no user interaction, leading to complete confidentiality and integrity compromise. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion, the high severity warrants immediate attention for affected systems.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.9CPE matchmatch criteria
cpe:2.3:a:tad_book3_project:tad_book3:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.22%
Probability of exploitation in next 30 days
EPSS Percentile
65.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0122 is in the 52nd percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

twcert.org.tw / tw/cp-132-5173-e21ba-1.html
Third Party Advisory