CVE-2020-29041Public exploitNetwork attack vector

Unauthenticated source-code disclosure via production source maps

Published Jan 6, 2021 · Updated Aug 4, 2024

Information disclosure in Web-Sesame 2020.1.1.3375 allows remote attackers to download application source code without authentication. The production Webpack configuration includes JavaScript source maps that expose bundled sources, configuration values such as API keys, and developer comments. Any network client that can reach the web application can retrieve the maps; the documented consequence is read-only disclosure, not code execution or service interruption.

CVSS severity5.3
Medium
EPSS probability1.35%
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 Web-Sesame 2020.1.1.3375 allows remote attackers to download application source code without authentication. The production Webpack configuration includes JavaScript source maps that expose bundled sources, configuration values such as API keys, and developer comments. Any network client that can reach the web application can retrieve the maps; the documented consequence is read-only disclosure, not code execution or service interruption.

The record

CVE
CVE-2020-29041
Published
Jan 6, 2021
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1592.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 6, 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

5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NVDAV:N/AC:L/Au:N/C:P/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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1592.002Gather Victim Host Information: Software

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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