FKIE_CVE-2026-4078
Vulnerability from fkie_nvd - Published: 2026-04-24 08:16 - Updated: 2026-04-24 14:38
Severity ?
Summary
The ITERAS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) in all versions up to and including 1.8.2. This is due to insufficient input sanitization and output escaping in the combine_attributes() function. The function directly concatenates shortcode attribute values into JavaScript code within <script> tags using double-quoted string interpolation (line 489: '"'.$key.'": "'.$value.'"') without any escaping. An attacker can break out of the JavaScript string context by including a double-quote character in a shortcode attribute value and inject arbitrary JavaScript. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The ITERAS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via multiple shortcodes (iteras-ordering, iteras-signup, iteras-paywall-login, iteras-selfservice) in all versions up to and including 1.8.2. This is due to insufficient input sanitization and output escaping in the combine_attributes() function. The function directly concatenates shortcode attribute values into JavaScript code within \u003cscript\u003e tags using double-quoted string interpolation (line 489: \u0027\"\u0027.$key.\u0027\": \"\u0027.$value.\u0027\"\u0027) without any escaping. An attacker can break out of the JavaScript string context by including a double-quote character in a shortcode attribute value and inject arbitrary JavaScript. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"id": "CVE-2026-4078",
"lastModified": "2026-04-24T14:38:26.740",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.1,
"impactScore": 2.7,
"source": "security@wordfence.com",
"type": "Primary"
}
]
},
"published": "2026-04-24T08:16:30.373",
"references": [
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L489"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L511"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L519"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L527"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L551"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/tags/1.8.2/public/iteras-public.php#L561"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L489"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L511"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L519"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L527"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L551"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/browser/iteras/trunk/public/iteras-public.php#L561"
},
{
"source": "security@wordfence.com",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026old=3507724%40iteras\u0026new=3507724%40iteras\u0026sfp_email=\u0026sfph_mail="
},
{
"source": "security@wordfence.com",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/bd034f43-370c-4ad9-ad02-4cae0f48d781?source=cve"
}
],
"sourceIdentifier": "security@wordfence.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
],
"source": "security@wordfence.com",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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