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Deleting a log entry actor doesn't always hide the actor entirely
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Description

The "thanks" button can still be used to discover who committed the logged action.

See https://test.wikipedia.org/wiki/Special:Log?logid=220884 and then https://test.wikipedia.org/wiki/Special:Log?logid=220884&uselang=qqx

Event Timeline

Urbanecm added a project: Vuln-Infoleak.
Urbanecm subscribed.

This should fix this.

Patch looks good to me, I will deploy it in an hour.

Thank you, @Catrope. Could you please have a look at T207094 as well, if it's within your area of expertise? :-)

Catrope changed the visibility from "Custom Policy" to "Public (No Login Required)".Jul 11 2019, 10:51 PM

Change 522202 merged by jenkins-bot:
[mediawiki/extensions/Thanks@master] SECURITY: Do not let users thank for a log entry if actor was deleted

https://gerrit.wikimedia.org/r/522202

Change 522213 had a related patch set uploaded (by Catrope; owner: Urbanecm):
[mediawiki/extensions/Thanks@wmf/1.34.0-wmf.13] SECURITY: Do not let users thank for a log entry if actor was deleted

https://gerrit.wikimedia.org/r/522213

Change 522214 had a related patch set uploaded (by Catrope; owner: Urbanecm):
[mediawiki/extensions/Thanks@wmf/1.34.0-wmf.11] SECURITY: Do not let users thank for a log entry if actor was deleted

https://gerrit.wikimedia.org/r/522214

Change 522213 merged by jenkins-bot:
[mediawiki/extensions/Thanks@wmf/1.34.0-wmf.13] SECURITY: Do not let users thank for a log entry if actor was deleted

https://gerrit.wikimedia.org/r/522213

Change 522214 merged by jenkins-bot:
[mediawiki/extensions/Thanks@wmf/1.34.0-wmf.11] SECURITY: Do not let users thank for a log entry if actor was deleted

https://gerrit.wikimedia.org/r/522214

Thanks @Catrope for deployment. Can this be closed as "resolved" then?

Yes, sorry for forgetting. I was waiting for the patches to merge.