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CVE-2025-9629

18
FAUCET Score

CVE-2025-9629 describes a Cross-Site Request Forgery (CSRF) vulnerability in the USS Upyun WordPress plugin, affecting all versions up to and including 1.5.0. This flaw stems from inadequate nonce validation, allowing unauthenticated attackers to manipulate critical Upyun cloud storage settings like bucket names and credentials if a site administrator is enticed into clicking a malicious link. Rated as MEDIUM severity with a CVSS score of 4.3, the vulnerability requires user interaction (UI:R) but has low attack complexity (AC:L) and no authentication (PR:N) for the attacker. A successful exploit could lead to unauthorized modification of cloud storage configurations (I:L), potentially impacting data integrity or availability. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, indicating a low level of public awareness or concern at this time.

Impacted Technologies

VendorProductVersion(s)CPE
ShenyanzhiUSS Upyun
>= 0, <= 1.5.0CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.16%
Probability of exploitation in next 30 days
EPSS Percentile
5.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0016 is in the 4th percentile among its peer group of 26,236 CVEs.

Social Chatter

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

Remediation records are not available for this CVE.

References

plugins.trac.wordpress.org / browser/uss-upyun/tags/1.5.0/upyun-uss-wordpress.php
plugins.trac.wordpress.org / browser/uss-upyun/tags/1.5.0/upyun-uss-wordpress.php
plugins.trac.wordpress.org / browser/uss-upyun/tags/1.5.1/upyun-uss-wordpress.php
wordfence.com / threat-intel/vulnerabilities/id/d2cee46a-03d5-4a31-ba15-28be97794199