CVE-2026-66353

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Source
https://cve.org/CVERecord?id=CVE-2026-66353
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66353.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-66353
Aliases
Published
2026-08-27T16:44:59.553Z
Modified
2026-08-30T03:30:37.612772524Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
Doggo vulnerable to cross-site scripting via unescaped date field values
Details

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in woylie doggo allows Reflected XSS.

Doggo.normalize_value/2 in lib/doggo.ex returned date field values wrapped in {:safe, ...}, the Phoenix.HTML marker meaning "already escaped, emit verbatim", without escaping them, so the value reached the value attribute of the <input> rendered by the field component unchanged. Any application rendering <.field type="date"> over user-controlled params is affected through the ordinary Phoenix form round-trip, where a failed validation re-renders the submitted value. The pattern kept exactly the first ten bytes and discarded shorter values, capping a payload at ten bytes: enough to terminate the attribute and open an element or attach a short event handler, not enough to place attacker-chosen script inline. Only type="date" is affected.

This issue affects doggo: from 0.1.0 before 0.14.8.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/66xxx/CVE-2026-66353.json",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "ae65fed72982ec97f95af931686c627b19c2b58d"
                },
                {
                    "fixed": "0161c976a114a4a4faee22d599b3fd5f147fc443"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-79"
    ],
    "cna_assigner": "EEF"
}
References

Affected packages

Git / github.com/woylie/doggo

Affected ranges

Type
GIT
Repo
https://github.com/woylie/doggo
Events
Introduced
0a93466e3ad2f4c3b53595b2a6c7c4c9c45c4039
Fixed
425e76539a8e40ade38091e7fb22eb2f43abb0dc
Fixed
0161c976a114a4a4faee22d599b3fd5f147fc443
Database specific
Show details 
{
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0.1.0"
        },
        {
            "fixed": "0.14.8"
        }
    ]
}

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.1.3
0.1.4
0.1.5
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.5
0.10.6
0.10.7
0.10.8
0.11.0
0.12.0
0.13.0
0.13.1
0.13.2
0.13.3
0.14.0
0.14.1
0.14.2
0.14.3
0.14.4
0.14.5
0.14.6
0.14.7
0.2.0
0.2.1
0.3.0
0.3.1
0.4.0
0.5.0
0.6.0
0.7.0
0.8.0
0.8.1
0.8.2
0.9.0
0.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-66353.json"