CVE-2021-44662Public exploitNetwork attack vector

Script execution via unescaped print link

Published Feb 24, 2022 · Updated Aug 4, 2024

Reflected XSS in Xerte Online Toolkits 3.8.4 and earlier allows remote attackers to execute script via print.php's link parameter. The print endpoint places the submitted project URL from link directly into the returned page without checking or neutralizing HTML markup. A victim must open a crafted request; the injected script then runs in that victim's browser under the Xerte site's origin, enabling access to page data or actions available to the session.

CVSS severity6.1
Medium
EPSS probability1.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Reflected XSS in Xerte Online Toolkits 3.8.4 and earlier allows remote attackers to execute script via print.php's link parameter. The print endpoint places the submitted project URL from link directly into the returned page without checking or neutralizing HTML markup. A victim must open a crafted request; the injected script then runs in that victim's browser under the Xerte site's origin, enabling access to page data or actions available to the session.

The record

CVE
CVE-2021-44662
Published
Feb 24, 2022
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 24, 2022CVE 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

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 exploitPublished

Weakness, pattern, technique

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

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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