# CVE-2026-118562: Drupal Single Content Sync unsafe deserialization in import

Source: https://junglewise.ai/threats/cve-2026-118562-drupal-contrib-2026-275-single-content-sync-enables-exporting  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-30. Updated: 2026-10-30  
License: CC BY 4.0 with a link back

CVE-2026-118562 · Severity: info · Published 2026-10-30

Single Content Sync is a Drupal module that allows content migration between sites by importing and exporting data. A maliciously crafted import file can execute arbitrary code on the target site if the attacker holds the "import single content" permission, enabling complete site compromise.

Technologies: [Packagist:Https://Packages.Drupal.Org/8 Drupal/Single Content Sync](https://junglewise.ai/threats/technologies/drupal-single-content-sync). Vendors: [Drupal](https://junglewise.ai/threats/vendors/drupal), [Packagist:Https://Packages.Drupal.Org/8](https://junglewise.ai/threats/vendors/packagist-https-packages-drupal-org-8).

## Quick answers

**Is CVE-2026-118562 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118562 being exploited in the wild.

**How severe is CVE-2026-118562?** Informational severity, published 30 October 2026.

**Which products and versions are affected?** Drupal Single Content Sync before 1.4.19; Packagist:Https://Packages.Drupal.Org/8 Drupal/Single Content Sync ECOSYSTEM:introduced=0,fixed=1.4.19.

**Is there a fix for CVE-2026-118562?** Yes. Packagist:Https://Packages.Drupal.Org/8 Drupal/Single Content Sync: upgrade to 1.4.19 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-118562 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-118562?** Check whether you run Drupal Single Content Sync or Packagist:Https://Packages.Drupal.Org/8 Drupal/Single Content Sync at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Packagist:Https://Packages.Drupal.Org/8 Drupal/Single Content Sync: upgrade to 1.4.19 or later

## Technical details

The vulnerability is an unsafe deserialization flaw triggered when processing import files. An authenticated attacker with the "import single content" permission can craft a malicious import file containing serialized PHP objects that execute arbitrary code during deserialization. The attack requires authenticated access with a specific role, reducing but not eliminating the risk in shared hosting or multi-user environments.

## Affected products

- Drupal Single Content Sync before 1.4.19

## Identifiers

- CVE-2026-118562
- DRUPAL-CONTRIB-2026-275

## Timeline

- 2026-10-28: disclosed

## References

- [https://www.drupal.org/u/mcdruid](https://www.drupal.org/u/mcdruid)
- [https://www.drupal.org/sa-contrib-2026-275](https://www.drupal.org/sa-contrib-2026-275)

## Related threats

- [Drupal Single Content Sync arbitrary file write and disclosure](https://junglewise.ai/threats/cve-2026-118561-drupal-contrib-2026-274-single-content-sync-enables-exporting)
- [DRUPAL-CONTRIB-2025-060 - This module enables you to seamlessly migrate and deploy content across environments…](https://junglewise.ai/threats/cve-2025-48009-drupal-contrib-2025-060-this-module-enables-you-to-seamlessly)