The related intercourse toy platform Lovense is weak to a zero-day flaw that enables an attacker to get entry to a member’s electronic mail deal with just by understanding their username, placing them prone to doxxing and harassment.
Lovense is an interactive intercourse toy producer, finest recognized for producing app-controlled intercourse toys with names just like the Lush, the Gush, and, maybe most boldly, the Kraken. The corporate claims to have 20 million clients worldwide.
Whereas Lovense toys are generally used for each native and long-distance leisure, they’re additionally standard amongst cam fashions who enable viewers to tip or subscribe for distant management of their toys.
Nonetheless, the related expertise may expose their Lovense username, and resulting from this flaw, probably reveal their personal electronic mail deal with.
Lovense usernames are sometimes publicly shared on boards and social media, making them straightforward targets for attackers.
The flaw was found by safety researcher BobDaHacker, who collaborated with researchers Eva and Rebane to reverse engineer the app and automate the assault.
The researchers disclosed two flaws over 4 months in the past, on March 26, 2025. Nonetheless, solely one of many flaws, a crucial account hijacking flaw, was subsequently mounted.
The Lovense flaws
The vulnerability stems from the interplay between Lovense’s XMPP chat system, used for communication between customers, and the platform’s backend.
“So it began after I was utilizing the Lovense app and muted somebody. That is it. Simply muted them,” explains BobDaHacker’s report.
“However then I noticed the API response and was like… wait, is that an electronic mail deal with? Why is that there? After digging deeper, I discovered learn how to flip any username into their electronic mail deal with.”
To use the flaw, an attacker makes a POST request to the /api/put on/genGtoken API endpoint with their credentials, which returns a gtoken (authentication token) and AES-CBC encryption keys.
The attacker then takes any publicly recognized Lovense username and encrypts it utilizing the retrieved encryption keys. This encrypted payload is shipped to the /app/ajaxCheckEmailOrUserIdRegisted?electronic mail={encrypted_username} API endpoint.
The server responds with knowledge containing a pretend electronic mail deal with, which the researcher transformed right into a pretend Jabber ID (JID) utilized by Lovense’s XMPP server.
By including this pretend JID to their XMPP contact listing and sending a presence subscription over XMPP (much like a buddy request), the attacker can refresh the roster (contact listing), which now consists of each the pretend JID and the actual one related to the goal’s account.
Nonetheless, the issue is that the actual JID is constructed utilizing the person’s precise electronic mail, within the format [email protected], permitting attackers to extract the sufferer’s electronic mail deal with.
For instance, if it returned [email protected], the ensuing precise electronic mail of the Lovense account is [email protected].
The researchers confirmed that the whole course of might be accomplished in lower than one second per person with a script. BleepingComputer created a pretend account right now and shared our username with BobDaHacker, permitting them to easily join as a buddy and return the e-mail we registered with.
The researcher additionally said that it is not crucial to simply accept a buddy request to use the flaw.
BleepingComputer additionally confirmed that it’s comparatively straightforward to search out legit usernames on boards and Lovense-related websites, like lovenselife.com.
The researcher additionally claims that the FanBerry extension, created by Lovense, can be utilized to reap usernames as most of the cam fashions use the identical username, making wide-scale electronic mail harvesting potential.
The researchers additionally found a crucial vulnerability that permit them fully hijack an account.
Utilizing solely an electronic mail deal with, an attacker may generate authentication tokens without having a password. Utilizing these tokens, an attacker may impersonate a person on Lovense platforms, together with Lovense Join, StreamMaster, and Cam101.
These tokens reportedly labored on admin accounts as effectively.
Whereas Lovense has mitigated this flaw by rejecting the tokens on its APIs, the researchers famous that gtokens can nonetheless be generated with no password.
Each points have been reported to Lovense on March 26, 2025. In April, after additionally submitting the bugs on HackerOne, Lovense knowledgeable the researchers that the e-mail subject was already recognized and glued in an upcoming model.
The corporate initially downplayed the account hijacking flaw, however after being instructed it may enable full admin account entry, Lovense reclassified it as crucial.
In complete, the researchers acquired $3,000 for the disclosure of the failings.
On June 4, the corporate claimed the failings have been mounted, however the researchers confirmed this was not the case. Lovense in the end mounted the account hijack flaw in July however said that it could take roughly 14 months to resolve the e-mail flaw, as it could break compatibility with older variations of their app.
“We have launched a long-term remediation plan that may take roughly ten months, with no less than 4 extra months required to totally implement a whole resolution,” Lovense instructed the researcher.
“We additionally evaluated a sooner, one-month repair. Nonetheless, it could require forcing all customers to improve instantly, which might disrupt help for legacy variations. We have determined towards this strategy in favor of a extra secure and user-friendly resolution.”
The researchers criticized this response, stating the corporate repeatedly claimed the problems have been mounted after they weren’t.
“Your customers deserve higher. Cease placing previous app help over safety. Truly make things better. And take a look at your fixes earlier than saying they work,” BobDaHacker wrote within the report.
Finally, Lovense says they deployed a proxy characteristic on July third that was instructed by the researchers to mitigate the assault. Nonetheless, even after doing a drive replace of the app, the flaw was not mounted, so its unclear what was modified.
In 2016, a number of Lovense flaws uncovered electronic mail addresses or allowed attackers to find out if an electronic mail deal with had an accoune at Lovense.
BleepingComputer reached out to Lovense for remark however didn’t obtain a response.
CISOs know that getting board buy-in begins with a transparent, strategic view of how cloud safety drives enterprise worth.
This free, editable board report deck helps safety leaders current threat, affect, and priorities in clear enterprise phrases. Flip safety updates into significant conversations and sooner decision-making within the boardroom.
