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Fencer Intel
medium 4.3

CVE-2013-0234 json

Cross-site scripting (XSS) vulnerability in the Twitter widget in Elgg before 1.7.17 and 1.8.x before 1.8.13 allows remote attackers to inj…

published 12y ago modified 4mo ago also EUVD-2013-0267

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 73%
public exploits
0
none known

Summary

Cross-site scripting (XSS) vulnerability in the Twitter widget in Elgg before 1.7.17 and 1.8.x before 1.8.13 allows remote attackers to inject arbitrary web script or HTML via the params[twitter_username] parameter to action/widgets/save.

Patch / fix

Is CVE-2013-0234 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

1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/Elgg/Elgg/commit/19dc507c2fccb378be2a44a762edf6c1e7afa334#L0R11 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.