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Fencer Intel
medium 4.3

CVE-2013-7343 json

Cross-site scripting (XSS) vulnerability in flowplayer.swf in the Flash fallback feature in Flowplayer HTML5 5.4.3 allows remote attackers…

published 12y ago modified 4mo ago also EUVD-2013-7115

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in flowplayer.swf in the Flash fallback feature in Flowplayer HTML5 5.4.3 allows remote attackers to inject arbitrary web script or HTML by using URL encoding within the callback parameter name. NOTE: this vulnerability exists because of an incomplete fix for CVE-2013-7342.

Patch / fix

Is CVE-2013-7343 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Exploit prediction

1.48% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/flowplayer/flowplayer/commit/27e8f178276c185cbddb4f14c91d4ce7b3865db1 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.