CVE-2026-52774

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Source
https://cve.org/CVERecord?id=CVE-2026-52774
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52774.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-52774
Aliases
Published
2026-09-04T23:51:19.336Z
Modified
2026-09-06T03:46:01.558990812Z
Severity
  • 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
Summary
Reflected XSS via Unescaped `id` Parameter in Bazar Widget HTML Attributes in YesWiki
Details

YesWiki is a wiki system written in PHP. Prior to version 4.6.6, YesWiki's Bazar widget handler reflects the id GET parameter into HTML attributes using striptags() only. Because striptags() does not escape double quotes, an attacker can break out of the attribute value, inject an event handler such as onmouseover, and execute arbitrary JavaScript in the victim's browser. This issue is reachable without authentication. During validation, the vulnerable widget route returned the injected HTML for both /HomePage/widget?id=... and /NoSuchPage/widget?id=..., which shows that no login, no page ownership, no edit rights, and not even a valid page tag were required. The only routing prerequisite observed was that the Bazar extension is enabled and the request includes an id parameter. This issue has been patched in version 4.6.6.

Database specific 
{
    "cwe_ids": [
        "CWE-80"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52774.json"
}
References

Affected packages

Git / github.com/yeswiki/yeswiki

Affected ranges

Type
GIT
Repo
https://github.com/yeswiki/yeswiki
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1aa2710c7505630b858f2142a65f9441bfaba2b2
Fixed
fa81922f4103630911cbea98ead3c4b7bc786e19
Database specific
Show details 
{
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.6.6"
        }
    ]
}

Affected versions

v4.*
v4.1.0
v4.1.5
v4.2.0
v4.2.1
v4.2.2
v4.3.0
v4.3.1
v4.4.0
v4.4.1
v4.4.2
v4.4.3
v4.5.1
v4.5.2
v4.5.3
v4.5.4
v4.5.5
v4.6.0
v4.6.2
v4.6.3
v4.6.4
v4.6.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-52774.json"