CVE-2020-13129Network attack vector

File disclosure via logged GET session credentials

Published May 18, 2020 · Updated Aug 4, 2024

Information disclosure in stashcat 3.9.1 and earlier allows attackers to access user files by reusing session credentials from server logs. The client places client_key and device_id values forming a long-lived session ID in HTTPS GET query strings, causing web servers and TLS gateways to log reusable authentication material. Access requires administrative visibility into those logs; reuse from another system bypasses password authorization and exposes the affected user's unencrypted files.

CVSS severity7.2
High
EPSS probability1.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in stashcat 3.9.1 and earlier allows attackers to access user files by reusing session credentials from server logs. The client places client_key and device_id values forming a long-lived session ID in HTTPS GET query strings, causing web servers and TLS gateways to log reusable authentication material. Access requires administrative visibility into those logs; reuse from another system bypasses password authorization and exposes the affected user's unencrypted files.

The record

CVE
CVE-2020-13129
Published
May 18, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-200, CWE-598, T1552.001
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 18, 2020CVE 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:S/C:C/I:C/A:C
7.2NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-598Use of GET Request Method With Sensitive Query Strings
T1552.001Unsecured Credentials: Credentials In Files

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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