CVE-2021-25938Network attack vector

Cross-site scripting via unescaped ZIP filenames

Published May 24, 2021 · Updated Aug 3, 2024

Cross-site scripting in ArangoDB 2.2.6.2 through 3.7.10 allows context-dependent attackers to execute script via a crafted ZIP filename. The Aardvark jQuery upload widget passes fileNameStr and fileList directly to jQuery .html(), causing filename metacharacters to be parsed as markup rather than displayed as text. The attack requires a user to select the archive in the Foxx deployment interface; injected script runs in that browser session's ArangoDB origin.

CVSS severity6.1
Medium
EPSS probability0.81%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in ArangoDB 2.2.6.2 through 3.7.10 allows context-dependent attackers to execute script via a crafted ZIP filename. The Aardvark jQuery upload widget passes fileNameStr and fileList directly to jQuery .html(), causing filename metacharacters to be parsed as markup rather than displayed as text. The attack requires a user to select the archive in the Foxx deployment interface; injected script runs in that browser session's ArangoDB origin.

The record

CVE
CVE-2021-25938
Published
May 24, 2021
Updated
Aug 3, 2024
Vendor
ArangoDB
Product
ArangoDB
Classifications
CWE-79, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 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=v2.2.6.2-v3.7.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ArangoDB · ArangoDBversion=v2.2.6.2-v3.7.10

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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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