YouTube’s Undeletable Explicit Content Bug

YouTube’s Undeletable Explicit Content Bug: A Deep Dive

YouTube's Undeletable Explicit Content Bug

YouTube, the world’s largest video streaming platform owned by tech giant Google, recently faced a significant challenge. A bug on the platform allowed users to upload hardcore pornographic content, which remained on the site even after the accounts that uploaded them were deleted.

The Bug and Its Exploitation

According to a report by The Indian Express, some YouTube users exploited a bug that permitted the upload of explicit content. These videos remained hosted on the platform even after the deletion of the accounts that uploaded them. The technique, as reported by 404 Media, involved manipulating YouTube’s video tagging system. Users spammed the video tags with millions of “newline” characters, which YouTube doesn’t typically recognize as actual characters. This action effectively hid these videos, making them nearly invisible and challenging to detect.

In a Discord channel dedicated to sharing explicit content links, a user shared a text file containing 4 million newline characters, claiming it could be used to upload “undeletable” videos to YouTube. Although YouTube has since addressed and fixed this bug, the platform is still grappling with the removal of videos uploaded using this exploit.

A spokesperson for YouTube, Jack Malon, acknowledged the issue, stating, “We’re aware that a small number of videos may have remained on YouTube following a channel termination. We’re working to fix this and remove the content from the platform.”

Further Investigations

India Today delved deeper into the issue, revealing that a group of self-proclaimed “YouTube hackers” flooded the platform with explicit content, some of which were directly transferred from popular adult sites like Pornhub. The content ranged from hentai to videos featuring renowned adult actress “Sweetie Fox.”

Emanuel Maiberg from 404 Media joined a Discord group called “YouTube porn hunters” to understand the hackers’ methods. He discovered that these hackers exploited a bug in YouTube’s video tagging system by flooding the platform with newline characters. This action rendered the videos without standard identifiers like channel names, video titles, or statistics, making them hard to track and delete.

Despite some videos being removed after gaining attention on social media, many remain, raising concerns about YouTube’s response effectiveness.

Google’s Response

Google, YouTube’s parent company, has been somewhat ambiguous about the issue. When Maiberg approached Google for a comment, a spokesperson requested a specific video link before taking action. Once provided, the video was promptly removed. Google’s official statement echoed YouTube’s, emphasizing their awareness of the problem and their ongoing efforts to address it.


This incident underscores a significant vulnerability in YouTube’s content moderation system. While many videos have been removed, the full extent of the problem remains uncertain. Users and stakeholders are left wondering about YouTube’s ability to safeguard against such content in the future.

It’s crucial for platforms like YouTube to continually evolve and strengthen their content moderation systems, ensuring a safe environment for all users.

YouTube's Undeletable Explicit Content Bug

Technical Details of the YouTube Bug

Another concerning bug related to YouTube has been brought to light, which potentially exposed users’ viewing history, favorites, and playlists. This vulnerability was discovered by security researcher David Schutz, who shared his findings in a detailed technical blog post.

How the Bug Worked

YouTube offers an embedded player feature that allows website developers to incorporate videos into their sites. This player comes with an API, granting users the ability to control the player and retrieve information about it. For instance, users can play or pause the player, load a new video or playlist, and even list the contents of the currently playing playlist.

Schutz pointed out that while these features work as intended, YouTube also has several special private playlists. For example, the playlist with the ID ‘HL’ contains a user’s watch history, and ‘WL’ contains the user’s watch later videos.

The vulnerability arose from the fact that the YouTube embedded player is logged into YouTube. A malicious website could embed this player, instruct it to play a private playlist like ‘HL’ (which would start playing the visiting user’s watch history), and then retrieve the contents of the playlist using the API. This action would effectively steal the watch history of any user who opened the malicious website.

Furthermore, an attacker could design a page specifically for a targeted victim. When the victim opens this page, the attacker could steal the victim’s unlisted videos, which would typically require knowing the video’s ID to view.

Implications of the Bug

The primary concern with this bug was that attackers could load private playlists into the player on behalf of the victim and subsequently steal the contents of those private playlists.

Schutz has previously identified other security flaws in YouTube, including one that allowed the theft of any private YouTube video if its ID was known.

While Google has been informed of Schutz’s findings, they have yet to provide an official response.

Here are the referral links to the sources related to the YouTube bug news:

  1. 404 Media: People Exploited YouTube Bug to Upload “Undeletable” Porn Videos
  2. The Indian Express: YouTube bug allows users to upload ‘undeletable’ hardcore porn
  3. One World News: YouTube Bug Allows ‘Undeletable’ Hardcore Porn Content to Linger
  4. Jagran English: YouTube Bug Exploited To Upload ‘Undeletable’ X-Rated Videos
  5. East Coast Daily: Alphabet-owned YouTube unable to resolve bug allowing people to upload ‘undeletable’ porn videos
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