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6 vulnerabilities by cypht-org
CVE-2026-113583 (GCVE-0-2026-113583)
Vulnerability from nvd – Published: 2026-10-20 11:35 – Updated: 2026-10-23 13:28 X_Open Source
VLAI
EPSS
VEX
Title
Cypht 2.0.0 through 2.12.2 Stored DOM XSS via externalResources.js
Summary
Cypht webmail 2.0.0 through 2.12.2 contains a DOM-based cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by crafting malicious alt text or URL values in an HTML email's external image tag when ALLOW_EXTERNAL_IMAGE_SOURCES is enabled. Attackers can send a specially crafted email so that when the victim opens it, the externalResources.js code builds the blocked-image notice using innerHTML with decoded email-derived values, triggering script execution in the victim's authenticated session to read mailboxes, send email, or change settings.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 21:21 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/pull/2118/chan… | issue-trackingpatch |
| https://github.com/cypht-org/cypht/releases#relea… | patch |
| https://www.vulncheck.com/advisories/cypht-throug… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-73524 (GCVE-0-2026-73524)
Vulnerability from nvd – Published: 2026-09-01 20:44 – Updated: 2026-09-04 02:10 X_Open Source
VLAI
EPSS
VEX
Title
Cypht < 2.12.2 XSS via FROM Email Header in Contacts Module
Summary
Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle brackets in the FROM email header. The sanitization logic removes only the first occurrence of each angle bracket character, leaving additional angle brackets intact, which attackers exploit by delivering a crafted email whose FROM header executes script in the victim's browser when the user opens the message and accesses the Add Local Contacts function.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 02:09 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/releases/tag/v2.12.2 | release-notes |
| https://github.com/cypht-org/cypht/pull/2072 | issue-tracking |
| https://github.com/cypht-org/cypht/commit/3723437… | patch |
| https://www.vulncheck.com/advisories/cypht-xss-vi… | third-party-advisory |
Date Public
2026-08-15 00:00
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CVE-2026-71981 (GCVE-0-2026-71981)
Vulnerability from nvd – Published: 2026-09-01 20:43 – Updated: 2026-09-02 14:52 X_Open Source
VLAI
EPSS
VEX
Title
Cypht < 2.12.2 PHP Object Injection RCE via back_query Parameter
Summary
Cypht before 2.12.2 contains a PHP object injection vulnerability that allows authenticated attackers to execute arbitrary operating system commands by supplying a crafted PHP object graph in the back_query GET parameter of the logout handler. Attackers can pass a base64-encoded serialized payload through this parameter, which is decoded and passed directly to unserialize() without an allow-list, signature check, or type restriction, enabling gadget-chain exploitation to achieve remote code execution as the web server process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 14:52 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/releases/tag/v2.12.2 | release-notes |
| https://github.com/cypht-org/cypht/pull/2073 | issue-tracking |
| https://github.com/cypht-org/cypht/commit/e4aa2f3… | patch |
| https://www.vulncheck.com/advisories/cypht-php-ob… | third-party-advisory |
Date Public
2026-08-16 00:00
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CVE-2026-113583 (GCVE-0-2026-113583)
Vulnerability from cvelistv5 – Published: 2026-10-20 11:35 – Updated: 2026-10-23 13:28 X_Open Source
VLAI
EPSS
VEX
Title
Cypht 2.0.0 through 2.12.2 Stored DOM XSS via externalResources.js
Summary
Cypht webmail 2.0.0 through 2.12.2 contains a DOM-based cross-site scripting vulnerability that allows remote attackers to execute arbitrary JavaScript by crafting malicious alt text or URL values in an HTML email's external image tag when ALLOW_EXTERNAL_IMAGE_SOURCES is enabled. Attackers can send a specially crafted email so that when the victim opens it, the externalResources.js code builds the blocked-image notice using innerHTML with decoded email-derived values, triggering script execution in the victim's authenticated session to read mailboxes, send email, or change settings.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-22 21:21 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/pull/2118/chan… | issue-trackingpatch |
| https://github.com/cypht-org/cypht/releases#relea… | patch |
| https://www.vulncheck.com/advisories/cypht-throug… | third-party-advisory |
Impacted products
Date Public
2026-10-20 00:00
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CVE-2026-73524 (GCVE-0-2026-73524)
Vulnerability from cvelistv5 – Published: 2026-09-01 20:44 – Updated: 2026-09-04 02:10 X_Open Source
VLAI
EPSS
VEX
Title
Cypht < 2.12.2 XSS via FROM Email Header in Contacts Module
Summary
Cypht before 2.12.2 contains a cross-site scripting vulnerability in the contacts module that allows remote attackers to execute arbitrary script content by embedding malicious payloads within angle brackets in the FROM email header. The sanitization logic removes only the first occurrence of each angle bracket character, leaving additional angle brackets intact, which attackers exploit by delivering a crafted email whose FROM header executes script in the victim's browser when the user opens the message and accesses the Add Local Contacts function.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 02:09 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/releases/tag/v2.12.2 | release-notes |
| https://github.com/cypht-org/cypht/pull/2072 | issue-tracking |
| https://github.com/cypht-org/cypht/commit/3723437… | patch |
| https://www.vulncheck.com/advisories/cypht-xss-vi… | third-party-advisory |
Date Public
2026-08-15 00:00
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CVE-2026-71981 (GCVE-0-2026-71981)
Vulnerability from cvelistv5 – Published: 2026-09-01 20:43 – Updated: 2026-09-02 14:52 X_Open Source
VLAI
EPSS
VEX
Title
Cypht < 2.12.2 PHP Object Injection RCE via back_query Parameter
Summary
Cypht before 2.12.2 contains a PHP object injection vulnerability that allows authenticated attackers to execute arbitrary operating system commands by supplying a crafted PHP object graph in the back_query GET parameter of the logout handler. Attackers can pass a base64-encoded serialized payload through this parameter, which is decoded and passed directly to unserialize() without an allow-list, signature check, or type restriction, enabling gadget-chain exploitation to achieve remote code execution as the web server process.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 14:52 UTC
CWE
- CWE-502 - Deserialization of Untrusted Data
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/cypht-org/cypht/releases/tag/v2.12.2 | release-notes |
| https://github.com/cypht-org/cypht/pull/2073 | issue-tracking |
| https://github.com/cypht-org/cypht/commit/e4aa2f3… | patch |
| https://www.vulncheck.com/advisories/cypht-php-ob… | third-party-advisory |
Date Public
2026-08-16 00:00
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