CVE-2002-0243: Cross-site scripting vulnerability in Opera 6.0 and earlier allows remote attackers to execute arbitrary scrip

Q: How do I fix CVE-2002-0243?

opera web browser: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Q: Is CVE-2002-0243 being exploited?

CVE-2002-0243 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2002-0243 affect?

CVE-2002-0243 affects opera web browser. Severity is high (CVSS 7.5). Cross-site scripting vulnerability in Opera 6.0 and earlier allows remote attackers to execute arbitrary script via an Extended HTML Form, whose output from the remote server is not properly cleansed.

This month

HIGH 7.5UPGRADE

CVE-2002-0243 is a high-severity flaw (CVSS 7.5) affecting opera web browser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting vulnerability in Opera 6.0 and earlier allows remote attackers to execute arbitrary script via an Extended HTML Form, whose output from the remote server is not properly cleansed.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2002-05-29
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: opera software

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2002-05-29 04:00 UTCPublished CVE record published
2026-06-16 21:57 UTCUpdated Record last modified

opera software opera web browser UPGRADE

Affected: <= 6.0

Fixed in: newer than 6.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opera-web-browser || rpm -q opera-web-browser || opera-web-browser --version

2. UPGRADE to newer than 6.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opera-web-browser

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opera-web-browser

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2002-0243?

opera web browser: upgrade to newer than 6.0. Exact commands for each OS are on this page.

Is CVE-2002-0243 being exploited?

CVE-2002-0243 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2002-0243 affect?

CVE-2002-0243 affects opera web browser. Severity is high (CVSS 7.5). Cross-site scripting vulnerability in Opera 6.0 and earlier allows remote attackers to execute arbitrary script via an Extended HTML Form, whose output from the remote server is not properly cleansed.

How urgent is CVE-2002-0243?

Priority 44/100. High severity

Related CVEs

CVE-2005-0233 HIGH 7.5 DOWNGRADE DOWNGRADE The International Domain Name (IDN) support in Firefox 1.0, Camino .8.5, and Mozilla before 1.7.6 allows remot
CVE-2002-2358 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in the FTP view feature in Opera 6.0 and 6.01 through 6.04 allows rem
CVE-2002-2332 MEDIUM 5.0 DOWNGRADE Buffer overflow in Opera 6.01 allows remote attackers to cause a denial of service (crash) via an IMG tag with
CVE-2002-2311 MEDIUM 6.4 DOWNGRADE DOWNGRADE Microsoft Internet Explorer 6.0 and possibly others allows remote attackers to upload arbitrary file contents
CVE-2002-1091 HIGH 7.5 DOWNGRADE DOWNGRADE Netscape 6.2.3 and earlier, and Mozilla 1.0.1, allow remote attackers to corrupt heap memory and execute arbit

References

← Back to latest CVEs