# CVE-2026-48303 — Adobe Campaign Classic

> As of 2026-08-27, CVE-2026-48303 is a CRITICAL-severity vulnerability in Adobe Campaign Classic, CVSS v3.1 10, EPSS 1.1% (66.3th percentile). Threadlinqs Intelligence links 1 tracked threat campaign to CVE-2026-48303, most recently “Adobe Campaign Classic Critical Incorrect Authorization Flaw Enables Unauthenticated Remote Code Execution (CVE-2026-48449) Paired With SQL Injection Memory/File Disclosure (CVE-2026-48448)”.

**Last updated:** 2026-08-27

## What is CVE-2026-48303?

Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does not require user interaction. Scope is changed.

The record classifies CVE-2026-48303 under weakness class [CWE-863](https://intel.threadlinqs.com/cwe/CWE-863). Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs no user interaction, and has high impact on confidentiality, integrity, availability. 1 affected-product entry is recorded, across 1 vendor, listed below. The identifier was first published 137 days ago.

## Severity and exploitation probability

- **CVSS v3.1 base score:** 10 — CRITICAL (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H`)
- **EPSS (FIRST):** 1.1% probability of exploitation in the next 30 days, higher than 66.3% of all scored CVEs
- **CISA KEV:** Not listed in the CISA Known Exploited Vulnerabilities catalog
- **Threadlinqs priority:** 7.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- **Published:** 2026-06-09, last modified 2026-08-27

## Is CVE-2026-48303 being exploited?

It currently carries a trending score of 22 in the Threadlinqs vulnerability feed.

## Affected products and versions

- [Adobe](https://intel.threadlinqs.com/vendors/adobe): Campaign Classic

## How to fix CVE-2026-48303

Vendor advisory: [https://helpx.adobe.com/security/products/campaign/apsb26-66.html](https://helpx.adobe.com/security/products/campaign/apsb26-66.html). Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.

## Threat activity tracking CVE-2026-48303

1 tracked threat in the Threadlinqs corpus references CVE-2026-48303, either in the campaign’s CVE list or as an indicator on the campaign record.

- [Adobe Campaign Classic Critical Incorrect Authorization Flaw Enables Unauthenticated Remote Code Execution (CVE-2026-48449) Paired With SQL Injection Memory/File Disclosure (CVE-2026-48448)](https://intel.threadlinqs.com/threat/TL-2026-1790) — CRITICAL · 2026-07-31

## Sources

Enriched from CVE.org, NVD, FIRST EPSS. Last verified by Threadlinqs on 2026-10-10. This product uses the NVD API but is not endorsed or certified by the NVD.

**Vendor advisory and patch**

- [helpx.adobe.com — vendor advisory](https://helpx.adobe.com/security/products/campaign/apsb26-66.html)

Canonical: https://intel.threadlinqs.com/cve/CVE-2026-48303
Full detection coverage and IOCs for threats exploiting CVE-2026-48303 via the Threadlinqs MCP server (Purple tier): https://intel.threadlinqs.com/mcp