6.8

CVE-2013-1639: opera opera_browser Cross-Site Request Forgery (CSRF)

CVSS: 6.8v2.0MediumModified
Published 08-02-2013Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2013-1639 is a medium (CVSS 6.8) Cross-Site Request Forgery (CSRF) vulnerability in opera opera_browser. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.9% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v2.0 (NVD)
EPSS score
0.49%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-02-2013
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

Opera before 12.13 does not send CORS preflight requests in all required cases, which allows remote attackers to bypass a CSRF protection mechanism via a crafted web site that triggers a CORS request.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

0.00 pp

From 0.49% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.49%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Opera1 product
  • opera_browser≤ 12.12 | 12.00 | 12.00:beta | 12.01 | 12.02 | 12.10 | 12.10:beta | 12.11

1 vendor · 1 product

References

3 links