CVE-2023-34205

FAUCET Score

CVE-2023-34205 is a critical vulnerability affecting Moov signedxml through version 1.0.0, allowing for signature validation bypass through a Signature Wrapping (XSW) attack. This network-exploitable flaw has low attack complexity and no user interaction, potentially leading to high impact on confidentiality and integrity. While rated with a CVSS score of 9.1, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		1.0.0CPE matchmatch criteria	cpe:2.3:a:moov:signedxml:1.0.0:::::go::

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

0.39%

Probability of exploitation in next 30 days

EPSS Percentile

31.6%

Percentile rank of EPSS score among Peer Group

As of 2026-07-26

Model: v2026.06.15

This CVE's current EPSS score of 0.0039 is in the 8th percentile among its peer group of 36,835 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

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa

Product: github.com/moov-io/signedxmlFixed in: 1.1.0

Vendor Advisories (1)

goGHSA-jqvr-j2vg-gjrvcritical

Signature validation bypass in github.com/moov-io/signedxml

May 30, 2023

References

github.com / moov-io/signedxml/issues/23

Issue TrackingThird Party Advisory