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Fencer Intel
high 7.4

CVE-2020-11056 json

Potential Code Injection in Sprout Forms

published 6y ago modified last mo. also GHSA-px8v-hxxx-2rgh , EUVD-2020-0435

cvss
7.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

In Sprout Forms before 3.9.0, there is a potential Server-Side Template Injection vulnerability when using custom fields in Notification Emails which could lead to the execution of Twig code. This has been fixed in 3.9.0.

Patch / fix

  • packagist barrelstrength/sprout-base-email 1.2.7
  • packagist barrelstrength/sprout-forms 3.9.0
  • barrelstrengthdesign sprout_forms 3.9.0

Is CVE-2020-11056 in your dependencies? 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

1.03% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 7.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
NVD 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD 2.0 6.5 AV:N/AC:L/Au:S/C:P/I:P/A:P
GitHub 3.1 7.4 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

Affected packages

ecosystem package affected fixed in
packagist barrelstrength/sprout-base-email
<1.2.7
1.2.7
packagist barrelstrength/sprout-forms
<3.9.0
3.9.0

Affected products

  • barrelstrength Sprout Forms

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

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.