CVE-2021-34668Network attack vector

Stored script execution via unsanitized folder names

Published Aug 30, 2021 · Updated May 5, 2025

Stored XSS in devowl.io GmbH Real Media Library 4.14.1 and earlier allows remote authenticated users to inject scripts through folder names. Folder.php processes the name parameter without adequately neutralizing script markup before storing and rendering folder names. Author-level access with folder creation or editing permission is required; the stored script executes in a browser that renders the affected name.

CVSS severity6.4
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in devowl.io GmbH Real Media Library 4.14.1 and earlier allows remote authenticated users to inject scripts through folder names. Folder.php processes the name parameter without adequately neutralizing script markup before storing and rendering folder names. Author-level access with folder creation or editing permission is required; the stored script executes in a browser that renders the affected name.

The record

CVE
CVE-2021-34668
Published
Aug 30, 2021
Updated
May 5, 2025
Vendor
devowl.io GmbH
Product
Real Media Library
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 30, 2021CVE publishedPublication date reported by the CVE source.
  2. May 5, 2025Record 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=4.14.1 <=4.14.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

devowl.io GmbH · Real Media Libraryversion=4.14.1 <=4.14.1

Published CVSS scores

3.5NVDAV:N/AC:M/Au:S/C:N/I:P/A:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.4WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Cross-site Scripting (XSS)
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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