CVE-2021-3879Network attack vector

Stored script execution via unsafe table export

Published Oct 19, 2021 · Updated Aug 3, 2024

Stored cross-site scripting in Snipe-IT before 5.3.0 allows remote authenticated users to execute script through table exports. The shared bootstrap-table Blade partial enabled CSV, spreadsheet, document, text, JSON, XML, and PDF exports without the htmlContent export option, leaving attacker-controlled cell markup unsafe in exported output. An attacker must first store crafted table content, and another authenticated user must export and open the affected data for script execution.

CVSS severity5.4
Medium
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Snipe-IT before 5.3.0 allows remote authenticated users to execute script through table exports. The shared bootstrap-table Blade partial enabled CSV, spreadsheet, document, text, JSON, XML, and PDF exports without the htmlContent export option, leaving attacker-controlled cell markup unsafe in exported output. An attacker must first store crafted table content, and another authenticated user must export and open the affected data for script execution.

The record

CVE
CVE-2021-3879
Published
Oct 19, 2021
Updated
Aug 3, 2024
Vendor
Grokability, Inc.
Product
Snipe-IT
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 19, 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?

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

  1. Affected versionversion=unspecified <5.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Grokability, Inc. · Snipe-ITversion=unspecified <5.3.0

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
6.8GitHub Advisory DatabaseCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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