From this thread:
https://infosec.exchange/@TomSellers/111126339492371432
I found that these apps installed on my Mac are still vulnerable to the WebP exploit:

Arduino IDE, Keybase, Slack, and AdGuard for Safari.

The first 3 I haven't launched in months, but... it certainly was A Choice that "AdGuard *FOR SAFARI*" contains an entire copy of "Chrome/100.0.4896.160" inside it.

Tom Sellers (@[email protected])

Roughly 2 weeks ago Google patched a critical vulnerability, CVE-2023-4863, that was being exploited in the wild. The broad impact of the root cause of the vuln and the fact that it will have a long tail of unpatched software has been poorly communicated. You can read more in @dangoodin 's [excellent article on Ars Technica](https://arstechnica.com/security/2023/09/incomplete-disclosures-by-apple-and-google-create-huge-blindspot-for-0-day-hunters/). As pointed out in the article above, Electron is based on Chromium and is impacted. Electron is bundled in a ton of apps that people might overlook. I threw together the following shell command to help macOS audit which versions of Electron apps are installed. ``` find /Applications -type f -name "*Electron Framework*" -exec \ sh -c "echo \"{}\" && strings \"{}\" | grep '^Chrome/[0-9.]* Electron/[0-9]' | head -n1 && echo " \; ``` When run, you should see something similar to the following: ``` /Applications/Visual Studio Code.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework Chrome/114.0.5735.289 Electron/25.8.1 /Applications/Slack.app/Contents/Frameworks/Electron Framework.framework/Versions/A/Electron Framework Chrome/116.0.5845.188 Electron/26.2.1 ``` #Security #Electron #CVE20234863 #CVE-2023-4863

Infosec Exchange
So what ad blocker should I be using with Safari instead of AdGuard? Is Adblock Plus the only other game in town? They seem to be beg-ware now who have been co-opted into claiming that there is such a thing as an "acceptable ad".
@jwz I use https://1blocker.com and it seems pretty OK.
1Blocker - The Most Beautiful & Powerful Safari Ad Blocker for iPhone, iPad and Mac

1Blocker lets you block ads, trackers, and other unwanted web content. It's easy to use and doesn’t slow down Safari. 1Blocker comes with over 120,000 built-in blocker rules. It is very configurable and all your settings are synced over iCloud.

@siracusa @jwz here’s my vote for 1Blocker as well. Works on mobile and Mac.
@sfoskett @siracusa @jwz I like Wipr, personally. It’s lacks all the customization of 1Blocker but its been mostly set it and forget it.