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5.0

Opera browser lets attackers force feed subscriptions

CVE-2010-3020 · published 16 years ago
Summary

The news-feed preview in Opera versions before 10.61 does not strip out embedded scripts. An attacker can craft a feed that automatically subscribes a user to any feed they choose. Update Opera to the latest version or disable the preview feature to stop this behavior.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
opera opera_browser <= 10.60
1.00
2.00
2.10
2.12
3.00
3.10
3.21
3.50
3.51
3.60
3.61
75 more version ranges
cpe:2.3:a:opera:opera_browser:*:*:*:*:*:*:*:*
Original advisory text
The news-feed preview feature in Opera before 10.61 does not properly remove scripts, which allows remote attackers to force subscriptions to arbitrary feeds via crafted content.
The news-feed preview feature in Opera before 10.61 does not properly remove scripts, which allows remote attackers to force subscriptions to arbitrary feeds via crafted content.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
2% chance of attack within 30 days
Type
CWE-264Permissions, Privileges, and Access Controls
Timeline
Published16 Aug 2010
Updated3 Nov 2026
First seen29 Sep 2026
Sources
CVE-2010-3020 · NVD
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