Early access: the directory is still filling out, and every rating here is a reported experience.
NR Unrated
ExpressionEngine
ExpressionEngine HackerOne
2 more reviews needed for a grade
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Found a vulnerability?

If you would rather not deal with the vendor yourself, a BugRater analyst will submit it upstream on your behalf, with your explicit permission, and tell you what came back.

Ask BugRater to submit it

Private. The report body is encrypted at rest; BugRater holds the key, so the analyst working it can read it. Every read is logged.

Program metrics HackerOne · published

HackerOne’s own figures for this program, read from its public page, not reported by researchers and not part of the BugRater grade. Captured 4 Oct 2026.

What it pays, by severity

Critical amount not published 4 reports
High amount not published 16 reports
Medium amount not published 39 reports
Low amount not published 42 reports

Intake & responsiveness · last 90 days

Reports received
19
in 90 days
Resolved
203
all time, last one 8 months ago
Participants
99
hunters engaged
Response efficiency
37%
below its own targets, HackerOne’s figure
SLA misses
0
targets missed
Reports received · day by day, last 18 days 18–21
4 Sep 19 reports 4 Oct

Response targets it sets itself

First response
1 day
Triage
2 days
Bounty
30 days
Resolution
30 days

A target the program declared, not a measurement of it being met.

Getting in the door

Open to submit. Nothing HackerOne publishes stands between a hunter and a first report here.

Over 45 days (95 snapshots): intake down 2 reports; response efficiency down 20 points.

Reviews

1 published
Hacktivity: ExpressionEngine (34 disclosed)
★★★★★ neutral

Source: HackerOne Hacktivity (public disclosures) Program: https://hackerone.com/expressionengine Disclosed reports analyzed: 34 Bounties: none in disclosed reports --- Aggregated from publicly disclosed HackerOne reports. Ratings derived from triage timing and bounty data.

via HackerOne reports 34
Anonymous researcher · Oct 1, 2026 · Share ↗ 0 helpful
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Who this program credits

103 credited

Researchers HackerOne shows on this program’s public thanks list, best position first. “Recognised” is how many of a hunter’s submissions the program accepted; the ratio is their signal here, not our judgement of them.

# Researcher Reputation Recognised / submitted
1 strukt 189 27 / 30 90%
2 pradeepch99 175 27 / 29 93%
3 solov9ev 126 18 / 18 100%
4 flex0geek 123 20 / 35 57%
5 khalooda0x 105 17 / 22 77%
6 khoabda1 63 11 / 15 73%
6 sagorhawlader 63 0 / 0
8 d0bby 44 7 / 8 88%
9 generaleg 39 7 / 9 78%
10 ceph-dev 21 0 / 0
10 deadlock 21 3 / 3 100%
10 simba50091 21 3 / 6 50%
13 huzaifa_jawaid 16 3 / 4 75%
13 jyoti 16 3 / 3 100%
15 0xsp 14 2 / 2 100%
15 dogeshark 14 0 / 0
15 fed01k 14 1 / 1 100%
15 freetom 14 2 / 3 67%
15 g4mm4 14 2 / 2 100%
15 mtk 14 3 / 3 100%
15 nn1 14 2 / 2 100%
15 tanzanian__hacker 14 2 / 2 100%
15 unbaiat 14 2 / 3 67%
24 ibram 12 1 / 1 100%
24 winst0n13 7 1 / 2 50%

Showing the top 25 of 103 credited on HackerOne.

Program profile HackerOne · imported

Facts published by HackerOne on the program's own page, not reported by researchers, and not part of the BugRater grade. Last checked 1 Oct 2026.

ExpressionEngine is a robust and flexible open-source Content Management System.

Responsiveness
37% HackerOne’s figure
Swag
No
Currency
USD
Submissions
Open
Launched
Jul 2014