City-Forum campaign targets exposed Salesforce and ServiceNow guest access to steal data

Researchers say a stealthy campaign called City-Forum is quietly pulling exposed data from Salesforce and ServiceNow sites that allow too much guest access. Reco says the attackers use a custom Go-based toolset against Salesforce Experience Cloud Aura and Lightning Web Runtime (LWR), including what it calls the first observed in-the-wild abuse of Salesforce's UI API guest surface, and also hit a little-documented ServiceNow Service Portal search endpoint. Targeting has included telecoms, banks, software vendors, and public-sector portals.
Why it matters: Organizations using Salesforce Experience Cloud or ServiceNow portals may be leaking data to anyone on the internet if guest permissions are too broad. This is an exposure and active-threat story, not just theory: admins should urgently review guest-user permissions, self-registration settings, exposed portal endpoints, and logs for enumeration and bulk data access.

Sources

One Attacker Has Scraped Both Salesforce and ServiceNow Portals Since 2025
info@thehackernews.com (The Hacker News) 2026.08.18 96% relevant
This appears to be the same underlying campaign and adds attribution and timeline detail: one attacker has allegedly scraped both Salesforce and ServiceNow portals since 2025, reinforcing that the activity spans both platforms and is not isolated to one vendor.
"City-Forum" data-theft attacks target Salesforce, ServiceNow portals
Lawrence Abrams 2026.08.12 99% relevant
This article is a direct report on the same City-Forum campaign, adding specifics on the infrastructure, user agent, targeted Salesforce Aura and LWR endpoints, ServiceNow portal search abuse, and the campaign’s focus on anonymously accessible guest data.
Stealthy ‘City-Forum’ Attacks Target Salesforce and ServiceNow With Custom Toolset
Kevin Townsend 2026.08.12 100% relevant
This article appears to establish a distinct campaign, City-Forum, separate from previously tracked ShinyHunters Salesforce activity because it adds ServiceNow targeting, Salesforce LWR and UI API guest-surface exploitation, and a custom multi-platform toolset.
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