CVE-2021-3293Public exploitNetwork attack vector

Path disclosure via array parameter error

Published Feb 8, 2021 · Updated Aug 3, 2024

Path disclosure in emlog 5.3.1 allows remote attackers to reveal the webroot path via a crafted request to t/index.php. The endpoint passes an array-valued action parameter to addslashes(), which expects a string and emits an error containing the server filesystem path. No authentication or user interaction is required; the disclosure primarily enables follow-on attacks that need the application path.

CVSS severity5.3
Medium
EPSS probability19.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path disclosure in emlog 5.3.1 allows remote attackers to reveal the webroot path via a crafted request to t/index.php. The endpoint passes an array-valued action parameter to addslashes(), which expects a string and emits an error containing the server filesystem path. No authentication or user interaction is required; the disclosure primarily enables follow-on attacks that need the application path.

The record

CVE
CVE-2021-3293
Published
Feb 8, 2021
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1083
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3NVDCVSS: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

T1083File and Directory Discovery

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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