We are pleased to announce the release of **Greenshot 1.3.315, the latest stable update to the Greenshot 1.3 series. This release delivers an important security fix, a collection of stability improvements, and a cleaner installation experience. We strongly recommend all 1.3 users upgrade to the latest version version.**

🔒 Security Fix

This release addresses a security vulnerability. If you are running any earlier version of Greenshot 1.3, please update as soon as possible.

We have fixed a security issue tracked as GHSA-f8v9-7fph-fr2j. A huge thank you to @MarioRL0 for responsibly disclosing this vulnerability with a thorough, well-analyzed report. Responsible disclosure like this helps keep Greenshot safe for everyone.

All technical details can be found in the security advisory. Less technical summary: when you double-click Greenshot’s tray icon, Greenshot opens the folder containing your most recent screenshot by starting Windows Explorer. In affected versions, this was done by launching "explorer.exe" without an absolute path.

On Windows, starting a program by name (instead of e.g. C:\Windows\explorer.exe) can cause Windows to search for that program in multiple locations. If an attacker is able to place a malicious explorer.exe in a location that Windows checks before the real Windows one, Greenshot could accidentally start the attacker’s program instead. That attacker-controlled program could then run code in your user context (and even start the real Explorer afterwards, so things still “look normal”).

🛠️ Stability Improvements

Alongside the security fix, we have backported several bug fixes from the 1.4 development branch that address real-world issues reported by our users:

• Clipboard crash fixed: Greenshot could previously crash when something unexpected was placed on the clipboard by another application. This no longer happens.
• High CPU usage resolved: A bug in the background task scheduler was causing Greenshot to consume an excessive amount of CPU even when idle. This has been corrected.
• Black areas in the editor gone: When working at 75% zoom in the editor, some users saw strange black rectangles appear in the canvas. These visual glitches are now fixed.
• Correct Windows version reporting: Greenshot was incorrectly reporting Windows 11 as Windows 10 in the error reporting window. The version is now identified accurately.
• Smoother line and arrow drawing: When drawing lines or arrows, the endpoint would briefly flash in the wrong position. The drawing tool now behaves as expected from the very first click.
• Region capture crosshair fixed: The zoom helper and crosshair in region capture mode no longer flicker to the wrong starting position when you begin a selection.

📦 Cleaner Installations

We have also improved the installer to prevent issues caused by leftover files from older versions of Greenshot. The installer now automatically removes outdated 1.2 and 1.3 plugin files before placing the new ones — so you get a clean, consistent installation every time. Only plugins originally provided by Greenshot are affected by this cleanup.

What’s Next

Greenshot 1.3.315 is the final planned stable release of the 1.3 series. Our development focus has moved to the 1.4 series, which is currently in active development on the main branch. The 1.4 series brings exciting new capabilities including emoji support in the editor, OCR-based text redaction, and a new high-quality capture engine powered by the Windows Graphics Capture API.

We are grateful to everyone who has contributed to, tested, and reported issues for the 1.3 series. Your feedback has made Greenshot better.

Full Changelog

For a complete list of all changes in the 1.3 series — including technical details, issue references, and contributor credits — see the Greenshot 1.3 Changelog.