CVE-2021-35343Public exploitNetwork attack vector

Document renaming via forged authenticated browser requests

Published Aug 3, 2021 · Updated Aug 4, 2024

Cross-site request forgery in SeedDMS 5.1.x before 5.1.23 and 6.0.x before 6.0.16 allows remote attackers to rename documents. The /op/op.Ajax.php endpoint accepts a state-changing document-name request from an authenticated browser without verifying that the user intended it. Exploitation requires an authenticated user to visit attacker-controlled content, and the bounded consequence is unauthorized document-name modification.

CVSS severity4.3
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in SeedDMS 5.1.x before 5.1.23 and 6.0.x before 6.0.16 allows remote attackers to rename documents. The /op/op.Ajax.php endpoint accepts a state-changing document-name request from an authenticated browser without verifying that the user intended it. Exploitation requires an authenticated user to visit attacker-controlled content, and the bounded consequence is unauthorized document-name modification.

The record

CVE
CVE-2021-35343
Published
Aug 3, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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