CVE-2023-50266Public exploitNetwork attack vector

Unauthenticated blind SSRF via unchecked proxy URL

Published Dec 15, 2023 · Updated Aug 2, 2024

Server-side request forgery in Bazarr 1.2.4 allows remote attackers to make the server issue GET requests to arbitrary URLs. The proxy method concatenates user-controlled protocol and URL path values, then passes the result to requests.get() without validating the destination. The unauthenticated test route normally hides response bodies but exposes a status-based oracle for discovering internal or external resources.

CVSS severity5.3
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Bazarr 1.2.4 allows remote attackers to make the server issue GET requests to arbitrary URLs. The proxy method concatenates user-controlled protocol and URL path values, then passes the result to requests.get() without validating the destination. The unauthenticated test route normally hides response bodies but exposes a status-based oracle for discovering internal or external resources.

The record

CVE
CVE-2023-50266
Published
Dec 15, 2023
Updated
Aug 2, 2024
Vendor
Bazarr
Product
Bazarr
Classifications
CWE-918, T1090
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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?

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

  1. Affected versionversion=1.2.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bazarr · Bazarrversion=1.2.4

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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-918Server-Side Request Forgery (SSRF)
T1090Proxy

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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