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CVE-2023-48056

22
FAUCET Score

CVE-2023-48056 describes a critical vulnerability in PyPinkSign v0.5.1, where the AES encryption in CBC mode utilizes a non-random or static Initialization Vector (IV). This flaw, rated with a CVSS score of 7.5 (HIGH), allows for information disclosure due to the predictable IV, making it easier for attackers to decrypt sensitive data. While the attack complexity is low and no user interaction is required, there is currently no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
0.5.1CPE matchmatch criteria
cpe:2.3:a:bandoche:pypinksign:0.5.1:*:*:*:*:*:*:*

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
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 12th 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

Vendor Advisories (1)

pipGHSA-fxff-wxxv-c2jchigh

PyPinkSign uses a non-random or static IV for Cipher Block Chaining (CBC) mode in AES encryption

Nov 16, 2023

References

gxx777.github.io / PyPinkSign_v0.5.1_Cryptographic_API_Misuse_Vulnerability.md
Third Party Advisory