CVE-2017-5537: Weblate Weblate User Account Enumeration Vulnerability

MODERATE
Advisory Identifier: GHSA-j24g-gm76-j829
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CVSS 5.3
CWE-209 CWE-200
Published
Advisory Summary

CVE-2017-5537 is a MODERATE (CVSS 5.3) weblate user account enumeration vulnerability (CWE-209: Generation of Error Message Containing Sensitive Information) affecting Weblate libraries in the PyPI ecosystem. The issue involves weblate user account enumeration via reset password form. Remediation is available by upgrading affected packages to version 2.10.1.

CVE-2017-5537 at a Glance

CVE Identifier CVE-2017-5537
GHSA Identifier GHSA-j24g-gm76-j829
Severity MODERATE
CVSS v3.1 Base Score 5.3
CWE Classification CWE-209: Generation of Error Message Containing Sensitive Information
Affected Product Weblate
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 5.3

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity None (I:N)
Availability None (A:N)

How to Fix CVE-2017-5537

To remediate this vulnerability, upgrade all affected Weblate dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

weblate fixed: 2.10.1 
pip install weblate>=2.10.1
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show weblate

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2017-5537, inspect your installed packages using pip:

pip show weblate

Analyze the terminal output to locate any version of Weblate in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.10.1), your application is affected.

Note: The pip show weblate command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-209: Generation of Error Message Containing Sensitive Information, where the product generates an error message that includes sensitive information about its environment, users, or associated data. In Weblate, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

The password reset form in Weblate before 2.10.1 provides different error messages depending on whether the email address is associated with an account, which allows remote attackers to enumerate user accounts via a series of requests.

CVE-2017-5537 Affected Weblate Versions

1 component(s)
Fixed Versions:
2.10.1
Product / Package Ecosystem Affected Versions Fixed Version
weblate
pypi/weblate
PyPI
< 2.10.1
2.10.1

References

NVD — CVE-2017-5537 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-5537
Weblate Source Repository REPOSITORY
https://github.com/WeblateOrg/weblate/issues/1317
Security Fix Commit FIX COMMIT
https://github.com/WeblateOrg/weblate/commit/abe0d2a29a1d8e896bfe829c8461bf8b391f1079
Weblate Source Repository REPOSITORY
https://github.com/WeblateOrg/weblate
Weblate Source Repository REPOSITORY
https://github.com/WeblateOrg/weblate/blob/weblate-2.10.1/docs/changes.rst
Weblate Source Repository REPOSITORY
https://github.com/pypa/advisory-database/tree/main/vulns/weblate/PYSEC-2017-42.yaml
Weblate Security Information SECURITY
http://www.openwall.com/lists/oss-security/2017/01/18/11
Weblate Security Information SECURITY
http://www.openwall.com/lists/oss-security/2017/01/20/1
Weblate Security Information SECURITY
http://www.securityfocus.com/bid/95676

Frequently Asked Questions

What is CVE-2017-5537?
CVE-2017-5537 is a security vulnerability in Weblate involving Weblate user account enumeration via reset password form under CWE-209: Generation of Error Message Containing Sensitive Information.
Which Weblate versions are affected?
Affected versions include releases prior to 2.10.1 across affected packages: weblate.
What version fixes CVE-2017-5537?
Upgrading to 2.10.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is weblate affected?
Yes, weblate is affected in releases prior to 2.10.1. Upgrade your dependency to 2.10.1 or later.
What is the CVSS score of CVE-2017-5537?
CVE-2017-5537 has a CVSS v3.1 base score of 5.3 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
What CWE is associated with CVE-2017-5537?
CVE-2017-5537 is classified under CWE-209: Generation of Error Message Containing Sensitive Information (The product generates an error message that includes sensitive information about its environment, users, or associated data.).
How can I check PyPI dependencies for CVE-2017-5537?
Run the dependency tree command: 'pip show weblate'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-j24g-gm76-j829",
  "modified" : "2024-11-19T16:05:15Z",
  "published" : "2022-05-17T02:54:32Z",
  "aliases" : [ "CVE-2017-5537" ],
  "summary" : "Weblate user account enumeration via reset password form",
  "details" : "The password reset form in Weblate before 2.10.1 provides different error messages depending on whether the email address is associated with an account, which allows remote attackers to enumerate user accounts via a series of requests.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "weblate"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.10.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-5537"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/weblate/issues/1317"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/weblate/commit/abe0d2a29a1d8e896bfe829c8461bf8b391f1079"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/WeblateOrg/weblate"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/WeblateOrg/weblate/blob/weblate-2.10.1/docs/changes.rst"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/pypa/advisory-database/tree/main/vulns/weblate/PYSEC-2017-42.yaml"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2017/01/18/11"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2017/01/20/1"
  }, {
    "type" : "WEB",
    "url" : "http://www.securityfocus.com/bid/95676"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200", "CWE-209" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-08-04T21:55:01Z",
    "nvd_published_at" : "2017-03-15T15:59:00Z"
  }
}