CVE-2025-54433Network attack vector

Authenticated file overwrite via event_id traversal

Published Jul 30, 2025 · Updated Jul 30, 2025

Path traversal in affected Bugsink releases allows remote authenticated users with a valid DSN to overwrite files via crafted event_id input. The get_filename_for_event_id function joined event_id directly to INGEST_STORE_BASE_DIR without validating or normalizing it as a UUID. Writes are limited to paths accessible to the Bugsink process and remain within the container filesystem in containerized deployments.

CVSS severity7.2
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in affected Bugsink releases allows remote authenticated users with a valid DSN to overwrite files via crafted event_id input. The get_filename_for_event_id function joined event_id directly to INGEST_STORE_BASE_DIR without validating or normalizing it as a UUID. Writes are limited to paths accessible to the Bugsink process and remain within the container filesystem in containerized deployments.

The record

CVE
CVE-2025-54433
Published
Jul 30, 2025
Updated
Jul 30, 2025
Vendor
Bugsink
Product
Bugsink
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 1.4.3
  2. Affected versionversion=>= 1.5.0, < 1.5.5
  3. Affected versionversion=>= 1.6.0, < 1.6.4
  4. Affected versionversion=>= 1.7.0, < 1.7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bugsink · Bugsinkversion=< 1.4.3; version=>= 1.5.0, < 1.5.5; version=>= 1.6.0, < 1.6.4; version=>= 1.7.0, < 1.7.4

Published CVSS scores

7.1GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
7.2GitHub CNACVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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