CVE-2020-8966Network attack vector

Script injection via unneutralized PHP page input

Published Apr 1, 2020 · Updated Sep 16, 2024

Cross-site scripting in Tiki Wiki CMS Groupware 20.0 and earlier allows remote attackers to inject scripts into legitimate pages. Affected PHP pages pass upstream input onward without neutralizing angle brackets and ampersands, causing browsers to interpret attacker input as script. No authentication is required, but a user must load the affected page before the script can read or modify content in that browser context.

CVSS severity6.1
Medium
EPSS probability0.87%
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 Tiki Wiki CMS Groupware 20.0 and earlier allows remote attackers to inject scripts into legitimate pages. Affected PHP pages pass upstream input onward without neutralizing angle brackets and ampersands, causing browsers to interpret attacker input as script. No authentication is required, but a user must load the affected page before the script can read or modify content in that browser context.

The record

CVE
CVE-2020-8966
Published
Apr 1, 2020
Updated
Sep 16, 2024
Vendor
Tiki Software Community Association
Product
Tiki Wiki CMS Groupware
Classifications
CWE-80, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 1, 2020CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=through 20.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tiki Software Community Association · Tiki Wiki CMS Groupwareversion=through 20.0

Published CVSS scores

6.1INCIBE-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3INCIBE-CERTAV: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-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
T1189Drive-by Compromise

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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