invoiceninja Invoice Ninja up to 5.13.26 invoices Endpoint Purify.php Purify::isHostSafe notes server-side request forgery

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.52+

Summaryinfo

A vulnerability described as problematic has been identified in invoiceninja Invoice Ninja up to 5.13.26. This issue affects the function Purify::isHostSafe of the file app/Services/Pdf/Purify.php of the component invoices Endpoint. The manipulation of the argument notes results in server-side request forgery. This vulnerability is known as CVE-2026-83744. It is possible to launch the attack remotely. Furthermore, an exploit is available. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in invoiceninja Invoice Ninja up to 5.13.26. It has been classified as problematic. Affected is the function Purify::isHostSafe of the file app/Services/Pdf/Purify.php of the component invoices Endpoint. The manipulation of the argument notes with an unknown input leads to a server-side request forgery vulnerability. CWE is classifying the issue as CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. This is going to have an impact on confidentiality.

The advisory is shared for download at ashutosh-jena.in. This vulnerability is traded as CVE-2026-83744. The exploitability is told to be easy. It is possible to launch the attack remotely. Technical details and a public exploit are known.

The exploit is shared for download at ashutosh-jena.in. It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way. By approaching the search of inurl:app/Services/Pdf/Purify.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Google Hack: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/31/2026 VulDB entry created
09/01/2026 +0 days Advisory disclosed
09/01/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: ashutosh-jena.in
Status: Not defined

CVE: CVE-2026-83744 (🔒)
GCVE (CVE): GCVE-0-2026-83744
GCVE (VulDB): GCVE-100-397500
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/01/2026 00:57
Changes: 09/01/2026 00:57 (57)
Complete: 🔍
Submitter: MAVERICK-VF142
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #880055: invoiceninja Invoice Ninja 5.13.26 Server-Side Request Forgery (by MAVERICK-VF142)

Once again VulDB remains the best source for vulnerability data.

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