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CVE-2026-85293· NVD / CVE Program· CNA GitHub_M

InvoicePlane: Stored Cross-Site Scripting (XSS) via Client Email in Invoice and Quote Mailer Forms

InvoicePlane is a self-hosted open source application for managing invoices, clients, and payments. In version 1.7.2-beta-1, InvoicePlane stores client_email values without enforcing email syntax and renders them unescaped inside double-quoted value attributes in the invoice mailer form and quote mailer form. An administrator who can edit a client can store attribute-breaking input, and, when the mailer is configured, JavaScript executes when another authenticated administrator opens the related mailer page. The script runs in the InvoicePlane origin and can perform same-origin actions with the victim's session. This issue is fixed in version 1.7.2.

MediumCVSS 4.8 · v3.1—No exploit Fix available
Published
Sep 25, 2026
Updated
Sep 28, 2026
EPSS
0.2% · 12th percentile
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Report tools

JSON

Action score

19

Monitor

Low priority for now.

CVSS
19 / 40 · 4.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
proof of concept
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · GitHub_M
4.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Affected systems

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.

  • InvoicePlane InvoicePlane

    • < 1.7.2affected

Same product

invoiceplane: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-67084File upload vulnerability in InvoicePlane through 1.6.3 allows authenticated attackers to upload arbitrary PHP files into attachments, which
    39Monitor
  • CVE-2024-56975InvoicePlane (all versions tested as of December 2024) v.1.6.11 and before contains a remote code execution vulnerability in the upload_file
    39Monitor
  • CVE-2026-23491InvoicePlane has Unauthenticated Path Traversal in Guest Controller
    38Monitor
  • CVE-2026-39353InvoicePlane: Remote Code Execution via Writable Templates Directory
    36Monitor
  • CVE-2026-25548InvoicePlane Vulnerable to Remote Code Execution via Local File Inclusion and Log Poisoning
    36Monitor
  • CVE-2017-1000238InvoicePlane version 1.4.10 is vulnerable to a Arbitrary File Upload resulting in an authenticated user can upload a malicious file to the w
    35Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
InvoicePlane InvoicePlane1.7.2 · descriptionVendor (CNA)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2026-24743219 days apartInvoicePlane has a Stored Cross-Site Scripting (XSS) issue
    30Monitor
  • CVE-2026-24744219 days apartInvoicePlane has a Stored Cross-Site Scripting (XSS) issue
    30Monitor
  • CVE-2026-24745219 days apartInvoicePlane has a Stored Cross-Site Scripting (XSS) issue
    30Monitor
  • CVE-2026-24746219 days apartInvoicePlane has a Stored Cross-Site Scripting (XSS) issue
    30Monitor
  • CVE-2026-26270219 days apartInvoicePlane has Stored Cross-Site Scripting Issue in Identifier Formatting
    21Monitor
  • CVE-2026-25594219 days apartInvoicePlane has Stored XSS via Family Name in Product Form
    19Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • Administrator privileges are required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
low · data can be read
Integrity
low · data or configuration can be modified
Availability
none

Impact can extend beyond the vulnerable component (scope changes).

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Changed
Confidentiality impact
Low
Integrity impact
Low
Availability impact
None

Weakness class (CWE)

CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N

nvd-secondary

Root cause

User content is inserted into the page as HTML. The browser interprets the content as code rather than data.

The bug in code

The whole CWE-79 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
commentEl.innerHTML = comment.body;

Fixed

ts
commentEl.textContent = comment.body;

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

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Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records